Solve for x
x=45
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180-x=270-3x
Use the distributive property to multiply 3 by 90-x.
180-x+3x=270
Add 3x to both sides.
180+2x=270
Combine -x and 3x to get 2x.
2x=270-180
Subtract 180 from both sides.
2x=90
Subtract 180 from 270 to get 90.
x=\frac{90}{2}
Divide both sides by 2.
x=45
Divide 90 by 2 to get 45.
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