Answer:
(4, -3)
Explanation:
Rewrite equations:
x−2y=10;6x+3y=15
Step: Solvex−2y=10for x:
x−2y=10
x−2y+2y=10+2y(Add 2y to both sides)
x=2y+10
Step: Substitute2y+10forxin6x+3y=15:
6x+3y=15
6(2y+10)+3y=15
15y+60=15(Simplify both sides of the equation)
15y+60+−60=15+−60(Add -60 to both sides)
15y=−45
15y
15
=
−45
15
(Divide both sides by 15)
y=−3
Step: Substitute−3foryinx=2y+10:
x=2y+10
x=(2)(−3)+10
x=4(Simplify both sides of the equation)
Therefore answer: is
x=4 and y=−3
Hope it helps!