Question

5x - 2y = -15 and 3x + 8y = 37

Answer 1

Answer:

y=5

x=-1

Step-by-step explanation:

5x-2y=-15

3x+8y=37

add 2y to both sides

5x=2y-15

divide both sides by 5

x=(2y-15)/5

x=2y/5-3

substitute for x

3(2y/5-3)+8y=37

6y/5-9+8y=37

add 9 to each side

6y/5+8y=46

subtract 8y from both sides

6y/5=46-8y

multiply both sides by 5

6y=5(46-8y)

6y=230-40y

46y=230

y=5

substitute for y

5x-2(5)=-15

5x-10=-15

5x=-5

x=-1