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15x-21-2\left(9x-11\right)=4\left(8x-13\right)-17
Use the distributive property to multiply 3 by 5x-7.
15x-21-18x+22=4\left(8x-13\right)-17
Use the distributive property to multiply -2 by 9x-11.
-3x-21+22=4\left(8x-13\right)-17
Combine 15x and -18x to get -3x.
-3x+1=4\left(8x-13\right)-17
Add -21 and 22 to get 1.
-3x+1=32x-52-17
Use the distributive property to multiply 4 by 8x-13.
-3x+1=32x-69
Subtract 17 from -52 to get -69.
-3x+1-32x=-69
Subtract 32x from both sides.
-35x+1=-69
Combine -3x and -32x to get -35x.
-35x=-69-1
Subtract 1 from both sides.
-35x=-70
Subtract 1 from -69 to get -70.
x=\frac{-70}{-35}
Divide both sides by -35.
x=2
Divide -70 by -35 to get 2.