SOLUTION: 2y=2x+6 y=2x+4 Find the first variable and isolate it. Then solve for that variable solve for the second variable find the numerical value of the first variable Check

Question 1189820: 2y=2x+6
y=2x+4
Find the first variable and isolate it. Then solve for that variable
solve for the second variable
find the numerical value of the first variable
Check your work
:)
Found 3 solutions by Theo, MathLover1, ikleyn:
Answer by Theo(13342)   (Show Source): You can put this solution on YOUR website!
two equations need to be solved simultaneously.

2y = 2x + 6
y = 2x + 4

multiply both sides of the second equaion by 2 and leave the first equation as is to get:

2y = 2x + 6
2y = 4x + 8

subtract the first equation from the second to get:

0 = 2x + 2

solve for x to get x = -1

replace x in y = 2x + 4 to get y = -2 + 4
solve for y to get y = 2

you have x = -1 and y = 2

replace x and y in both original equations to get:

2y = 2x + 6 becomes 4 = -2 + 6 which becomes 4 = 4.
y = 2x + 4 becomes 2 = -2 + 4 which becomes 2 = 2.

this confirms the values are good.

your solution is that x = -1 and y = 2.
since the first variable is y, then your solution would becomes y = 2.

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

....eq.1
....eq.2
-----------------------
since in eq.2 is expressed in terms of , substitute it in eq.1
....eq.1, solve for

go to
....eq.2, substitute

solution:,

Answer by ikleyn(52787)   (Show Source): You can put this solution on YOUR website!
.
2y=2x+6
y=2x+4
Find the first variable and isolate it. Then solve for that variable
solve for the second variable
find the numerical value of the first variable
Check your work
:)
~~~~~~~~~~~~~~~~

From the posts of the two other tutors, notice that NO ONE of them followed your instructions.

And they did it RIGHT that they did not follow them,
because the instructions are IRRELEVANT to the problem and to the solution of the system,
as I noticed it to you in my post of yesterday.

Again, for your better understanding: your instructions in the post are DEFECTIVE.

The solutions of both tutors are correct.

RELATED QUESTIONS
2x+y=5 2y=2x-8 Find the first variable and isolate it. then solve for that variable. (answered by Alan3354)
2x+y=-4 x+y=7 Find the first variable and isolate it. then solve for that variable (answered by Alan3354)
2x+y=5 2y=2x-8 Find the first variable (that you want to use) and isolate it then... (answered by Alan3354)
2x+y=-4 x+y=-7 Find the first variable and isolate it. Then solve for that variable.... (answered by Alan3354,Theo,MathTherapy)
Solve for the variable indicated: 2x+3y=6 for... (answered by solver91311)
Solve r = 2sqrt(5L) for the variable L; meaning isolate the L... (answered by solver91311)
solve the equation by simplifying both sides and then using transformations to isolate... (answered by greenman)
I can't understand Which strategies could be used for solving the following system of... (answered by josmiceli,Earlsdon)
Solve the following system of equations: x-y+2z+t=3 3x-2y-z-t=4 2x+y+2z-t=10... (answered by stanbon)