Solve for x
x=-3
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7x+57=4\times 9
Multiply both sides by 9.
7x+57=36
Multiply 4 and 9 to get 36.
7x=36-57
Subtract 57 from both sides.
7x=-21
Subtract 57 from 36 to get -21.
x=\frac{-21}{7}
Divide both sides by 7.
x=-3
Divide -21 by 7 to get -3.
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