3z+4(z-2)=7+z

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Solution for 3z+4(z-2)=7+z equation:


Simplifying
3z + 4(z + -2) = 7 + z

Reorder the terms:
3z + 4(-2 + z) = 7 + z
3z + (-2 * 4 + z * 4) = 7 + z
3z + (-8 + 4z) = 7 + z

Reorder the terms:
-8 + 3z + 4z = 7 + z

Combine like terms: 3z + 4z = 7z
-8 + 7z = 7 + z

Solving
-8 + 7z = 7 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-8 + 7z + -1z = 7 + z + -1z

Combine like terms: 7z + -1z = 6z
-8 + 6z = 7 + z + -1z

Combine like terms: z + -1z = 0
-8 + 6z = 7 + 0
-8 + 6z = 7

Add '8' to each side of the equation.
-8 + 8 + 6z = 7 + 8

Combine like terms: -8 + 8 = 0
0 + 6z = 7 + 8
6z = 7 + 8

Combine like terms: 7 + 8 = 15
6z = 15

Divide each side by '6'.
z = 2.5

Simplifying
z = 2.5

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