Solve for x
x=6
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5.3x-2.2x-6.6=12
Use the distributive property to multiply -2.2 by x+3.
3.1x-6.6=12
Combine 5.3x and -2.2x to get 3.1x.
3.1x=12+6.6
Add 6.6 to both sides.
3.1x=18.6
Add 12 and 6.6 to get 18.6.
x=\frac{18.6}{3.1}
Divide both sides by 3.1.
x=\frac{186}{31}
Expand \frac{18.6}{3.1} by multiplying both numerator and the denominator by 10.
x=6
Divide 186 by 31 to get 6.
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