Question

Solve the equation 7-y-y=-1

Answer 1

Y is equal to 4

7-4-4 = -1

Answer 2

`7-y-y=-1\\\\7-2y=-1\ \ \ \ |subtract\ 7\ from\ both\ sides\\\\-2y=-8\ \ \ \ \ |divide\ both\ sides\ by\ (-2)\\\\\boxed{y=4}`