londynnorth
contestada

I REALLY NEED HELP
Solve for x: −3|x + 7| = −12

x = 5 over 3, x = −19 over 3
x = −3, x = −11
x = −3, x = 11
No solution

Respuesta :

Start by dividing both sides by -3..

-3 | x + 7| = - 12

| x + 7 | = 4   or | x + 7 | = - 4

Take out the absolute value bars

x + 7 = 4            x + 7 = -4
    -7   -7                - 7    -7

x = -3       or        x = -11

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