Question

Solve the system of equations.
5x – 7y = 58
y = -x + 2

Answer 1

x = 6, y = -4

Explanation:

Khan Academy

Answer 2

5x-7y=58

y=-x+2

• 5x-7(-x+2)=58
• 5x+7x-14=58
• 12x-14=58
• 12x=58+14
• 12x=72
• x=6

5x-7y=58

5(6)-7y=58

30-7y=58

-7y=58-30

-7y=28

y= -4