4(5z-1)-2(z+5)=15(z+1)

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Solution for 4(5z-1)-2(z+5)=15(z+1) equation:


Simplifying
4(5z + -1) + -2(z + 5) = 15(z + 1)

Reorder the terms:
4(-1 + 5z) + -2(z + 5) = 15(z + 1)
(-1 * 4 + 5z * 4) + -2(z + 5) = 15(z + 1)
(-4 + 20z) + -2(z + 5) = 15(z + 1)

Reorder the terms:
-4 + 20z + -2(5 + z) = 15(z + 1)
-4 + 20z + (5 * -2 + z * -2) = 15(z + 1)
-4 + 20z + (-10 + -2z) = 15(z + 1)

Reorder the terms:
-4 + -10 + 20z + -2z = 15(z + 1)

Combine like terms: -4 + -10 = -14
-14 + 20z + -2z = 15(z + 1)

Combine like terms: 20z + -2z = 18z
-14 + 18z = 15(z + 1)

Reorder the terms:
-14 + 18z = 15(1 + z)
-14 + 18z = (1 * 15 + z * 15)
-14 + 18z = (15 + 15z)

Solving
-14 + 18z = 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.
-14 + 18z + -15z = 15 + 15z + -15z

Combine like terms: 18z + -15z = 3z
-14 + 3z = 15 + 15z + -15z

Combine like terms: 15z + -15z = 0
-14 + 3z = 15 + 0
-14 + 3z = 15

Add '14' to each side of the equation.
-14 + 14 + 3z = 15 + 14

Combine like terms: -14 + 14 = 0
0 + 3z = 15 + 14
3z = 15 + 14

Combine like terms: 15 + 14 = 29
3z = 29

Divide each side by '3'.
z = 9.666666667

Simplifying
z = 9.666666667

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