7z-13=-25+4z

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Solution for 7z-13=-25+4z equation:


Simplifying
7z + -13 = -25 + 4z

Reorder the terms:
-13 + 7z = -25 + 4z

Solving
-13 + 7z = -25 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
-13 + 7z + -4z = -25 + 4z + -4z

Combine like terms: 7z + -4z = 3z
-13 + 3z = -25 + 4z + -4z

Combine like terms: 4z + -4z = 0
-13 + 3z = -25 + 0
-13 + 3z = -25

Add '13' to each side of the equation.
-13 + 13 + 3z = -25 + 13

Combine like terms: -13 + 13 = 0
0 + 3z = -25 + 13
3z = -25 + 13

Combine like terms: -25 + 13 = -12
3z = -12

Divide each side by '3'.
z = -4

Simplifying
z = -4

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