4 years ago

Please help!:

2 answers:

8 0

The answer is 2 solution.

#Solution
$3x + 12 + 18 = 0 \\3x = - 18 - 12 \\ 3x = - 30 \\ x = - 10$
$3x + 12 - 18 = 0 \\ 3x = 18 - 12 \\ 3x = 6 \\ x = 2$

tester [92]4 years ago

4 0

There are two solutions for the equation.

This is how you solve the absolute-value equation. If there is an equation of
| 3x + 12 | = 18
3x + 12 will have 2 solution, first is negative 18 and second is positive 18.

Work on it:
First solution
3x + 12 = -18
3x = -18 - 12
3x = -30
x = -10

Second solution
3x + 12 = 18
3x = 18 - 12
3x = 6
x = 2

The solution are x = -10 or x = 2. There are 2 solutions

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