SOLUTION: Solve the systems by using substituion or elimination 3x+9y = 36 x- 8y = -10

Question 111251: Solve the systems by using substituion or elimination
3x+9y = 36
x- 8y = -10

Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
3x+9y = 36
x- 8y = -10
==============
lets solve eq #2 for x, then substitute that answer for x in the first equation;
x=8y-10
3(8y-10)+9y=36
24y-30+9y
33y=36+30
33y=66
y=2
Now lets use that answer for y in equation#1;
3x+9(2)=36
3x+18=36
3x=18
x=6
:)
RELATED QUESTIONS
3x+9y=36... (answered by tommyt3rd)

Using Elimination Method solve x+8y=41 -x+9y=27 find the ordered pair (answered by Alan3354,solver91311)

Classify the following systems of equations as consistent, inconsistent, or dependent... (answered by robertb)

Solve by the elimination method x+8y=54... (answered by jim_thompson5910)

solve the system by elimination method x+8y=-16... (answered by checkley75)

3x+9y=18 6x_9y=-72 Solve by using elimination... (answered by Alan3354)

Solve the following linear equation by using gauss elimination x+3y+4z=7... (answered by stanbon)

solve 5x+9y= -8y-x=10 using straight line... (answered by Fombitz)

Solve by substitution or elimination method: 3x - 2y = 8... (answered by jim_thompson5910,Electrified_Levi)