Solve for m
m=-2
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3\left(4-7\right)+4\left(2-m\right)=7
Multiply both sides of the equation by 12, the least common multiple of 4,3,12.
3\left(-3\right)+4\left(2-m\right)=7
Subtract 7 from 4 to get -3.
-9+4\left(2-m\right)=7
Multiply 3 and -3 to get -9.
-9+8-4m=7
Use the distributive property to multiply 4 by 2-m.
-1-4m=7
Add -9 and 8 to get -1.
-4m=7+1
Add 1 to both sides.
-4m=8
Add 7 and 1 to get 8.
m=\frac{8}{-4}
Divide both sides by -4.
m=-2
Divide 8 by -4 to get -2.
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