SOLUTION: 3x-y=-2 5x+2y=15
Algebra.Com
Question 983240: 3x-y=-2 5x+2y=15
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
3x-y=-2
3x+2=y Use this to substitute for y below.
.
5x+2y=15 Substitute for y from above.
5x+2(3x+2)=15
5x+6x+4=15
11x=11
x=1
.
3x-y=-2
3(1)-y=-2
3-y=-2
-y=-5
y=5
.
CHECK:
3x-y=-2
3(1)-5=-2
3-5=-2
-2=-2
.
5x+2y=15
5(1)+2(5)=15
5+10=15
15=15
RELATED QUESTIONS
solve linear system
3x-y=-2... (answered by checkley77)
{3x-y=2... (answered by ewatrrr)
how can i solve this problem in matrix form?
Problem: 3x-y=-2... (answered by Alan3354)
3x-4y=-15... (answered by mananth)
1. (2x² + 3x – 1) + (5x² - 5x – 5)
2. (2x² + 3x – 1) – (5x² - 5x – 5)
3.... (answered by checkley77)
Maximize 3x + 2y
Subject to the constraints
5x + 3y <= 15
3x + 4y <= 12
x,y >=... (answered by Theo)
y=3x^2-5x+2 (answered by checkley77)
(3x-2y)-2(5x-4y) (answered by jim_thompson5910)
3x^3(5x^2+2y)= (answered by jim_thompson5910)