Question

Is (-9, 6) a solution to this system of equations? 7x-14--5 5x+6y=-18​

Answer 1

not a solution

Explanation:

Equation 1: y = 3x - 5

Equation 2: 7x - 14y = 5

Substituting x = -9 and y = 6 into the equations:

Equation 1: 6 = 3(-9) - 5

Simplifying, we get: 6 = -27 - 5

Further simplifying, we get: 6 = -32

Equation 2: 7(-9) - 14(6) = 5

Simplifying, we get: -63 - 84 = 5

Further simplifying, we get: -147 = 5

Since the left-hand side and the right-hand side of both equations are not equal when x = -9 and y = 6, (-9, 6) is not a solution to the system of equations.