5(4z-1)-3(z+7)=15(z+1)

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Solution for 5(4z-1)-3(z+7)=15(z+1) equation:


Simplifying
5(4z + -1) + -3(z + 7) = 15(z + 1)

Reorder the terms:
5(-1 + 4z) + -3(z + 7) = 15(z + 1)
(-1 * 5 + 4z * 5) + -3(z + 7) = 15(z + 1)
(-5 + 20z) + -3(z + 7) = 15(z + 1)

Reorder the terms:
-5 + 20z + -3(7 + z) = 15(z + 1)
-5 + 20z + (7 * -3 + z * -3) = 15(z + 1)
-5 + 20z + (-21 + -3z) = 15(z + 1)

Reorder the terms:
-5 + -21 + 20z + -3z = 15(z + 1)

Combine like terms: -5 + -21 = -26
-26 + 20z + -3z = 15(z + 1)

Combine like terms: 20z + -3z = 17z
-26 + 17z = 15(z + 1)

Reorder the terms:
-26 + 17z = 15(1 + z)
-26 + 17z = (1 * 15 + z * 15)
-26 + 17z = (15 + 15z)

Solving
-26 + 17z = 15 + 15z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-15z' to each side of the equation.
-26 + 17z + -15z = 15 + 15z + -15z

Combine like terms: 17z + -15z = 2z
-26 + 2z = 15 + 15z + -15z

Combine like terms: 15z + -15z = 0
-26 + 2z = 15 + 0
-26 + 2z = 15

Add '26' to each side of the equation.
-26 + 26 + 2z = 15 + 26

Combine like terms: -26 + 26 = 0
0 + 2z = 15 + 26
2z = 15 + 26

Combine like terms: 15 + 26 = 41
2z = 41

Divide each side by '2'.
z = 20.5

Simplifying
z = 20.5

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