15-(7z-8)+17z=3(4z+7)

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Solution for 15-(7z-8)+17z=3(4z+7) equation:


Simplifying
15 + -1(7z + -8) + 17z = 3(4z + 7)

Reorder the terms:
15 + -1(-8 + 7z) + 17z = 3(4z + 7)
15 + (-8 * -1 + 7z * -1) + 17z = 3(4z + 7)
15 + (8 + -7z) + 17z = 3(4z + 7)

Combine like terms: 15 + 8 = 23
23 + -7z + 17z = 3(4z + 7)

Combine like terms: -7z + 17z = 10z
23 + 10z = 3(4z + 7)

Reorder the terms:
23 + 10z = 3(7 + 4z)
23 + 10z = (7 * 3 + 4z * 3)
23 + 10z = (21 + 12z)

Solving
23 + 10z = 21 + 12z

Solving for variable 'z'.

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

Add '-12z' to each side of the equation.
23 + 10z + -12z = 21 + 12z + -12z

Combine like terms: 10z + -12z = -2z
23 + -2z = 21 + 12z + -12z

Combine like terms: 12z + -12z = 0
23 + -2z = 21 + 0
23 + -2z = 21

Add '-23' to each side of the equation.
23 + -23 + -2z = 21 + -23

Combine like terms: 23 + -23 = 0
0 + -2z = 21 + -23
-2z = 21 + -23

Combine like terms: 21 + -23 = -2
-2z = -2

Divide each side by '-2'.
z = 1

Simplifying
z = 1

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