SOLUTION: solve system by substitution,
x+2y=6
3x-y=-10
Algebra.Com
Question 111387: solve system by substitution,
x+2y=6
3x-y=-10
Answer by BrittanyM(80) (Show Source): You can put this solution on YOUR website!
We must solve for a single variable out of either of the equations first.
Let's choose x+2y=6
By isolating the x, we have x=-2y+6
Now let's plug this into the second equation.
3(-2y+6)-y=10
Using the distributive proporty:
-6y+18-y=10
Combine like terms:
-7y=-8
y=8/7
Now plug y into either equation and solve for x.
x+2(8/7)=6
x+16/7=6 Let 6 be 42/7
x=42/7-16/7
x=26/7
RELATED QUESTIONS
Solve the system by graphing.4x + 2y = 10
Solve the system by substitution. 3x – (answered by checkley71)
Solve the system by substitution. x + y = 12 y = 2x
Solve the system by addition (answered by jim_thompson5910)
solve each system by substitution or elimination
-x+y=6... (answered by Boreal)
Solve the system by substitution.
5x - 2y = 10
y = 3x -... (answered by checkley75,mommyengelman1)
Solve the nonlinear system by substitution:
{{{x^2+y^2=10... (answered by jim_thompson5910)
Solve the system by substitution:
x= -5/9y-10/9... (answered by MathLover1)
3x+y=6
6x+2y=10
Use substitution method to solve this... (answered by jojo14344)
solve the system by substitution.
{-x+y=-1
{3x-2y=1 (answered by deborabr)