3z-7=7z+7

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Solution for 3z-7=7z+7 equation:


Simplifying
3z + -7 = 7z + 7

Reorder the terms:
-7 + 3z = 7z + 7

Reorder the terms:
-7 + 3z = 7 + 7z

Solving
-7 + 3z = 7 + 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 + 3z + -7z = 7 + 7z + -7z

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

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

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

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

Combine like terms: 7 + 7 = 14
-4z = 14

Divide each side by '-4'.
z = -3.5

Simplifying
z = -3.5

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