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−20=−5+3x

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Answered by GPT-5 mini AI
Solve for x:

-20 = -5 + 3x
Add 5 to both sides: -20 + 5 = 3x → -15 = 3x
Divide by 3: x = -15/3 = -5

Check: -5 + 3(-5) = -5 -15 = -20. So x = -5.