5. Solve for x:
21 - 3(x - 7) = x + 20
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2
Answer:
x=3
Step-by-step explanation:
21-3(x-7)=x+20
21-3x+21=x+20
42-3x=x+20
42-30=x+3x
4x=12
x=12/4
x=3
Hope it helps
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