First you had to rewrite the problem with eighteen as the three times six is equal to eighteen.

Then you factor it out by the common term of six.

Final answer: 
Hope this helps!
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-Charlie
Answer:
Step-by-step explanation:
Vertically opposite angles are equal.
5x - 12 = 4x + 38
5x - 4x = 38 + 12
x = 50
The answer is 13. You can find this out by using the PEMDAS method. (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.)
Answer:
c
Step-by-step explanation:
Answer:
2x±44
Step-by-step explanation:
-2[x-7]=-2x±14 because negative ×negative=positive
±5[3x±6]=15x±30
-3[5x±10]=-15x±30
2x±14±15x-15x±30
2x±15x-15x=2x
14±30=44
2x±44=2x±44