Solve for x
x=-20
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6-2.1x-28=-x
Use the distributive property to multiply -0.7 by 3x+40.
-22-2.1x=-x
Subtract 28 from 6 to get -22.
-22-2.1x+x=0
Add x to both sides.
-22-1.1x=0
Combine -2.1x and x to get -1.1x.
-1.1x=22
Add 22 to both sides. Anything plus zero gives itself.
x=\frac{22}{-1.1}
Divide both sides by -1.1.
x=\frac{220}{-11}
Expand \frac{22}{-1.1} by multiplying both numerator and the denominator by 10.
x=-20
Divide 220 by -11 to get -20.
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