Solve for x
x=400
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\left(3\times 4+1\right)x=5200
Multiply both sides of the equation by 4.
\left(12+1\right)x=5200
Multiply 3 and 4 to get 12.
13x=5200
Add 12 and 1 to get 13.
x=\frac{5200}{13}
Divide both sides by 13.
x=400
Divide 5200 by 13 to get 400.
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