7z+7-4z=10+2z+5

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Solution for 7z+7-4z=10+2z+5 equation:


Simplifying
7z + 7 + -4z = 10 + 2z + 5

Reorder the terms:
7 + 7z + -4z = 10 + 2z + 5

Combine like terms: 7z + -4z = 3z
7 + 3z = 10 + 2z + 5

Reorder the terms:
7 + 3z = 10 + 5 + 2z

Combine like terms: 10 + 5 = 15
7 + 3z = 15 + 2z

Solving
7 + 3z = 15 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
7 + 3z + -2z = 15 + 2z + -2z

Combine like terms: 3z + -2z = 1z
7 + 1z = 15 + 2z + -2z

Combine like terms: 2z + -2z = 0
7 + 1z = 15 + 0
7 + 1z = 15

Add '-7' to each side of the equation.
7 + -7 + 1z = 15 + -7

Combine like terms: 7 + -7 = 0
0 + 1z = 15 + -7
1z = 15 + -7

Combine like terms: 15 + -7 = 8
1z = 8

Divide each side by '1'.
z = 8

Simplifying
z = 8

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