Solve for x
x=3400
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2800+x+1400+2x=14400
Add 1400 and 1400 to get 2800.
4200+x+2x=14400
Add 2800 and 1400 to get 4200.
4200+3x=14400
Combine x and 2x to get 3x.
3x=14400-4200
Subtract 4200 from both sides.
3x=10200
Subtract 4200 from 14400 to get 10200.
x=\frac{10200}{3}
Divide both sides by 3.
x=3400
Divide 10200 by 3 to get 3400.
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