7z-9-4z=7+2z-10

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Solution for 7z-9-4z=7+2z-10 equation:


Simplifying
7z + -9 + -4z = 7 + 2z + -10

Reorder the terms:
-9 + 7z + -4z = 7 + 2z + -10

Combine like terms: 7z + -4z = 3z
-9 + 3z = 7 + 2z + -10

Reorder the terms:
-9 + 3z = 7 + -10 + 2z

Combine like terms: 7 + -10 = -3
-9 + 3z = -3 + 2z

Solving
-9 + 3z = -3 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
-9 + 3z + -2z = -3 + 2z + -2z

Combine like terms: 3z + -2z = 1z
-9 + 1z = -3 + 2z + -2z

Combine like terms: 2z + -2z = 0
-9 + 1z = -3 + 0
-9 + 1z = -3

Add '9' to each side of the equation.
-9 + 9 + 1z = -3 + 9

Combine like terms: -9 + 9 = 0
0 + 1z = -3 + 9
1z = -3 + 9

Combine like terms: -3 + 9 = 6
1z = 6

Divide each side by '1'.
z = 6

Simplifying
z = 6

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