find the value if x
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Answer:
21-3(x-7) = x+20
21-3x+21 = x +20
-3x+42 = x+20
-3x-x = 20-42
-4x = -22
4x = 22
x = 22/4
x = 11/2
x = 5.5
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Answered by
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Step-by-step explanation:
21-3(x-7) = x+20
21-3x+21 = x+20
42-20 = 4x
4x = 22
x = 22/4
x = 5.5
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