Solve for b
b=1
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6.8-4.2b-5.6b=-3
Subtract 5.6b from both sides.
6.8-9.8b=-3
Combine -4.2b and -5.6b to get -9.8b.
-9.8b=-3-6.8
Subtract 6.8 from both sides.
-9.8b=-9.8
Subtract 6.8 from -3 to get -9.8.
b=\frac{-9.8}{-9.8}
Divide both sides by -9.8.
b=1
Divide -9.8 by -9.8 to get 1.
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