5(3z-1)-3(z+2)=7(z+1)

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Solution for 5(3z-1)-3(z+2)=7(z+1) equation:


Simplifying
5(3z + -1) + -3(z + 2) = 7(z + 1)

Reorder the terms:
5(-1 + 3z) + -3(z + 2) = 7(z + 1)
(-1 * 5 + 3z * 5) + -3(z + 2) = 7(z + 1)
(-5 + 15z) + -3(z + 2) = 7(z + 1)

Reorder the terms:
-5 + 15z + -3(2 + z) = 7(z + 1)
-5 + 15z + (2 * -3 + z * -3) = 7(z + 1)
-5 + 15z + (-6 + -3z) = 7(z + 1)

Reorder the terms:
-5 + -6 + 15z + -3z = 7(z + 1)

Combine like terms: -5 + -6 = -11
-11 + 15z + -3z = 7(z + 1)

Combine like terms: 15z + -3z = 12z
-11 + 12z = 7(z + 1)

Reorder the terms:
-11 + 12z = 7(1 + z)
-11 + 12z = (1 * 7 + z * 7)
-11 + 12z = (7 + 7z)

Solving
-11 + 12z = 7 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
-11 + 12z + -7z = 7 + 7z + -7z

Combine like terms: 12z + -7z = 5z
-11 + 5z = 7 + 7z + -7z

Combine like terms: 7z + -7z = 0
-11 + 5z = 7 + 0
-11 + 5z = 7

Add '11' to each side of the equation.
-11 + 11 + 5z = 7 + 11

Combine like terms: -11 + 11 = 0
0 + 5z = 7 + 11
5z = 7 + 11

Combine like terms: 7 + 11 = 18
5z = 18

Divide each side by '5'.
z = 3.6

Simplifying
z = 3.6

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