Answer: A. 20 is the answer.
Step-by-step explanation:
x+40 = 3x
or, 40 = 3x-x
or, 2x = 40
or, x = 40/2
so, x = 20
1.)combine like terms: 12-2x=10x 3-10=-7
10x-7
Answer:
12 * 3x
Step-by-step explanation:
x is equal to the minutes
Answer:
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