Question

A system of equations is shown.

{ x= = 10
3x + 5y = 20
What is the solution (x, y) of the system of equations?

Answer 1

Explanation:

when x=10

3x+5y=20

3×10+5y=20

30+5y=20

5y=20-30

5y=-10

y=-10/5

y=-2