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3 years ago

What’s the answer for 3(x+4)=-18

Mathematics

2 answers:

atroni [7]3 years ago

8 0

Answer:

x = -10(see explanation!)

Step-by-step explanation:

With any equation, you will want to isolate the variable, in this case x. Here's a step by step:

3(x+4) = -18

Distribute the 3:

3*x + 4*3 = -18

Simplify:

3x + 12 = -18

Subtract 12 on both sides to isolate x:

3x + 12 - 12 = -18 - 12

Simplify:

3x = -30

Finally, divide by three to get the x value:

3x/3 = -30/3

x = -10

bija089 [108]3 years ago

6 0

Answer: 10 or -10

Step-by-step explanation: 3x + 12 = -18

-12 both sides then you get 3x = -30 divide by 3 which equals x = 10 or -10

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