SOLUTION: Not understanding how to solve system by substitution

Algebra.Com
Question 948731: Not understanding how to solve system by substitution
Answer by Zucchini(70)   (Show Source): You can put this solution on YOUR website!
All you have to do to solve by substitution is just substitute one thing for the other. Here's an example:
First equation: Y= x + 2
Second equation: 6= x + y
All, you have to do is plug in the value of "y" from the first equation into the second equation.
6 = x + (x+2) did you see what I just did there? I just plugged for y. Now, all you have to do is solve.
6 = x + (x+2)
6 = 2x + 2
4 = 2x
2 = x
Now try to find out what "y" is.

Y = 2 + 2
Y = 4
The solution to the inequalities is (2,4)
Hope I helped you get a better understanding, if you need more help with this you can e-mail me.

RELATED QUESTIONS

I'm not sure how to solve the following: Solve the system by substitution. y=6x-11... (answered by MathLover1)
I'm using Substitution. My problem asks me to solve each system of linear equations.... (answered by checkley77)
Solve the system by substitution. 3x – y = –7 x + y = –9 Help!! I am... (answered by stanbon)
Solve the system by graphing. 3x + y = –1 9x + 3y = –3 Please help me graph and... (answered by Earlsdon)
I need to solve the system of equations by the substitution method y=3x+1 3y-5x=11 (answered by psbhowmick)
how do I use substitution to solve the linear system for X + 3/4y = 3/4 2y = 4x +... (answered by aussie7us)
Hello how to solve each system by substitution: y = 2x - 8 4x + 3y = 1 thank... (answered by funmath)
Explain how you decide whether it is easier to solve a system by substitution or... (answered by stanbon)
how to solve a system by substitution? example : y= 5x - 19 and y= 2x -... (answered by stanbon)