7z-7=-4z+15

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Solution for 7z-7=-4z+15 equation:


Simplifying
7z + -7 = -4z + 15

Reorder the terms:
-7 + 7z = -4z + 15

Reorder the terms:
-7 + 7z = 15 + -4z

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

Combine like terms: 7z + 4z = 11z
-7 + 11z = 15 + -4z + 4z

Combine like terms: -4z + 4z = 0
-7 + 11z = 15 + 0
-7 + 11z = 15

Add '7' to each side of the equation.
-7 + 7 + 11z = 15 + 7

Combine like terms: -7 + 7 = 0
0 + 11z = 15 + 7
11z = 15 + 7

Combine like terms: 15 + 7 = 22
11z = 22

Divide each side by '11'.
z = 2

Simplifying
z = 2

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