7=-4z+15

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Solution for 7=-4z+15 equation:


Simplifying
7 = -4z + 15

Reorder the terms:
7 = 15 + -4z

Solving
7 = 15 + -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.
7 + 4z = 15 + -4z + 4z

Combine like terms: -4z + 4z = 0
7 + 4z = 15 + 0
7 + 4z = 15

Add '-7' to each side of the equation.
7 + -7 + 4z = 15 + -7

Combine like terms: 7 + -7 = 0
0 + 4z = 15 + -7
4z = 15 + -7

Combine like terms: 15 + -7 = 8
4z = 8

Divide each side by '4'.
z = 2

Simplifying
z = 2

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