Question

3x - 7y = 13; x = -3, 0, 3

Solve the equation for y.
and solve for x. ​

Answer 1

when x = -3; y = -22/7

when x = 0; y = -13/7

when x = 3; y = -4/7

y = 3/7x - 13/7

x = 7/3y + 13/3

Explanation:

x = -3; 3(-3) - 7y = 13; -9 - 7y = 13; -7y = 22; y = -22/7

x = 0; 3(0) -7y = 13; -7y = 13; y = -13/7

x = 3; 3(3) -7y = 13; 9 - 7y = 13; -7y = 4; y = -4/7

SOLVE FOR Y: 3x - 7y = 13; -7y = -3x + 13; y = 3/7x - 13/7

SOLVE FOR X: 3x - 7y = 13; 3x = 7y + 13; x = 7/3y + 13/3