Solve for x
x=9
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\frac{315}{7}=x+4x
Divide both sides by 7.
45=x+4x
Divide 315 by 7 to get 45.
45=5x
Combine x and 4x to get 5x.
5x=45
Swap sides so that all variable terms are on the left hand side.
x=\frac{45}{5}
Divide both sides by 5.
x=9
Divide 45 by 5 to get 9.
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