Solve:
3(2x + 9) = 39
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2
Answer:
Explanation:
First thing is first: Divide both sides by 3 to eliminate the coefficient outside of the parentheses:
3
3
(
2
x
+
9
)
=
39
3
⇒
2
x
+
9
=
13
Next, subtract 9 from both sides to get
2
x
by itself:
2
x
+
9
−
9
=
13
−
9
⇒
2
x
=
4
Finally, divide both sides by 2 to get the solution for x:
2
x
2
=
4
2
⇒
x
=
2
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