Solve for x
x=-20
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x+50+0x=30
Multiply 0 and 90 to get 0.
x+50+0=30
Anything times zero gives zero.
x+50=30
Add 50 and 0 to get 50.
x=30-50
Subtract 50 from both sides.
x=-20
Subtract 50 from 30 to get -20.
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