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x+3+4=4x+2\left(x+1\right)
Multiply both sides of the equation by 4, the least common multiple of 4,2.
x+7=4x+2\left(x+1\right)
Add 3 and 4 to get 7.
x+7=4x+2x+2
Use the distributive property to multiply 2 by x+1.
x+7=6x+2
Combine 4x and 2x to get 6x.
x+7-6x=2
Subtract 6x from both sides.
-5x+7=2
Combine x and -6x to get -5x.
-5x=2-7
Subtract 7 from both sides.
-5x=-5
Subtract 7 from 2 to get -5.
x=\frac{-5}{-5}
Divide both sides by -5.
x=1
Divide -5 by -5 to get 1.