Solve for x
x=7
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\frac{-189}{-7}=4x-1
Divide both sides by -7.
27=4x-1
Divide -189 by -7 to get 27.
4x-1=27
Swap sides so that all variable terms are on the left hand side.
4x=27+1
Add 1 to both sides.
4x=28
Add 27 and 1 to get 28.
x=\frac{28}{4}
Divide both sides by 4.
x=7
Divide 28 by 4 to get 7.
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