Question

-2x + 7y = 2
3x - 7y = -10​

Answer 1

• -2x+7y=2. (+)
• 3x -7y =-10
• -2x+3x+7y-7y =2+ (- 10)
• X=2-10
• X=-8

-2x+7y=2.=> - 2(-8) +7y=2 => 16+7y=2 => 7y= 2-16

• 7y=-14
• y=-2