4(5z-1)-3(z+2)=15(z+1)

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Solution for 4(5z-1)-3(z+2)=15(z+1) equation:


Simplifying
4(5z + -1) + -3(z + 2) = 15(z + 1)

Reorder the terms:
4(-1 + 5z) + -3(z + 2) = 15(z + 1)
(-1 * 4 + 5z * 4) + -3(z + 2) = 15(z + 1)
(-4 + 20z) + -3(z + 2) = 15(z + 1)

Reorder the terms:
-4 + 20z + -3(2 + z) = 15(z + 1)
-4 + 20z + (2 * -3 + z * -3) = 15(z + 1)
-4 + 20z + (-6 + -3z) = 15(z + 1)

Reorder the terms:
-4 + -6 + 20z + -3z = 15(z + 1)

Combine like terms: -4 + -6 = -10
-10 + 20z + -3z = 15(z + 1)

Combine like terms: 20z + -3z = 17z
-10 + 17z = 15(z + 1)

Reorder the terms:
-10 + 17z = 15(1 + z)
-10 + 17z = (1 * 15 + z * 15)
-10 + 17z = (15 + 15z)

Solving
-10 + 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.
-10 + 17z + -15z = 15 + 15z + -15z

Combine like terms: 17z + -15z = 2z
-10 + 2z = 15 + 15z + -15z

Combine like terms: 15z + -15z = 0
-10 + 2z = 15 + 0
-10 + 2z = 15

Add '10' to each side of the equation.
-10 + 10 + 2z = 15 + 10

Combine like terms: -10 + 10 = 0
0 + 2z = 15 + 10
2z = 15 + 10

Combine like terms: 15 + 10 = 25
2z = 25

Divide each side by '2'.
z = 12.5

Simplifying
z = 12.5

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