4(5z-1)-5(z+7)=10(z+1)

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Solution for 4(5z-1)-5(z+7)=10(z+1) equation:


Simplifying
4(5z + -1) + -5(z + 7) = 10(z + 1)

Reorder the terms:
4(-1 + 5z) + -5(z + 7) = 10(z + 1)
(-1 * 4 + 5z * 4) + -5(z + 7) = 10(z + 1)
(-4 + 20z) + -5(z + 7) = 10(z + 1)

Reorder the terms:
-4 + 20z + -5(7 + z) = 10(z + 1)
-4 + 20z + (7 * -5 + z * -5) = 10(z + 1)
-4 + 20z + (-35 + -5z) = 10(z + 1)

Reorder the terms:
-4 + -35 + 20z + -5z = 10(z + 1)

Combine like terms: -4 + -35 = -39
-39 + 20z + -5z = 10(z + 1)

Combine like terms: 20z + -5z = 15z
-39 + 15z = 10(z + 1)

Reorder the terms:
-39 + 15z = 10(1 + z)
-39 + 15z = (1 * 10 + z * 10)
-39 + 15z = (10 + 10z)

Solving
-39 + 15z = 10 + 10z

Solving for variable 'z'.

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

Add '-10z' to each side of the equation.
-39 + 15z + -10z = 10 + 10z + -10z

Combine like terms: 15z + -10z = 5z
-39 + 5z = 10 + 10z + -10z

Combine like terms: 10z + -10z = 0
-39 + 5z = 10 + 0
-39 + 5z = 10

Add '39' to each side of the equation.
-39 + 39 + 5z = 10 + 39

Combine like terms: -39 + 39 = 0
0 + 5z = 10 + 39
5z = 10 + 39

Combine like terms: 10 + 39 = 49
5z = 49

Divide each side by '5'.
z = 9.8

Simplifying
z = 9.8

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