Solve for x
x=20.475
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2x\times 2+2.7\times 3=90
Multiply both sides of the equation by 2.
4x+2.7\times 3=90
Multiply 2 and 2 to get 4.
4x+8.1=90
Multiply 2.7 and 3 to get 8.1.
4x=90-8.1
Subtract 8.1 from both sides.
4x=81.9
Subtract 8.1 from 90 to get 81.9.
x=\frac{81.9}{4}
Divide both sides by 4.
x=\frac{819}{40}
Expand \frac{81.9}{4} by multiplying both numerator and the denominator by 10.
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