Solve for x
x=37
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3x+\left(45-x\right)\left(-1\right)=103
Subtract 5 from 50 to get 45.
3x-45+x=103
Use the distributive property to multiply 45-x by -1.
4x-45=103
Combine 3x and x to get 4x.
4x=103+45
Add 45 to both sides.
4x=148
Add 103 and 45 to get 148.
x=\frac{148}{4}
Divide both sides by 4.
x=37
Divide 148 by 4 to get 37.
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