2z+7=7z-45

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Solution for 2z+7=7z-45 equation:


Simplifying
2z + 7 = 7z + -45

Reorder the terms:
7 + 2z = 7z + -45

Reorder the terms:
7 + 2z = -45 + 7z

Solving
7 + 2z = -45 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
7 + 2z + -7z = -45 + 7z + -7z

Combine like terms: 2z + -7z = -5z
7 + -5z = -45 + 7z + -7z

Combine like terms: 7z + -7z = 0
7 + -5z = -45 + 0
7 + -5z = -45

Add '-7' to each side of the equation.
7 + -7 + -5z = -45 + -7

Combine like terms: 7 + -7 = 0
0 + -5z = -45 + -7
-5z = -45 + -7

Combine like terms: -45 + -7 = -52
-5z = -52

Divide each side by '-5'.
z = 10.4

Simplifying
z = 10.4

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