3(z+7)-(4z-8)=-2z

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Solution for 3(z+7)-(4z-8)=-2z equation:


Simplifying
3(z + 7) + -1(4z + -8) = -2z

Reorder the terms:
3(7 + z) + -1(4z + -8) = -2z
(7 * 3 + z * 3) + -1(4z + -8) = -2z
(21 + 3z) + -1(4z + -8) = -2z

Reorder the terms:
21 + 3z + -1(-8 + 4z) = -2z
21 + 3z + (-8 * -1 + 4z * -1) = -2z
21 + 3z + (8 + -4z) = -2z

Reorder the terms:
21 + 8 + 3z + -4z = -2z

Combine like terms: 21 + 8 = 29
29 + 3z + -4z = -2z

Combine like terms: 3z + -4z = -1z
29 + -1z = -2z

Solving
29 + -1z = -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.
29 + -1z + 2z = -2z + 2z

Combine like terms: -1z + 2z = 1z
29 + 1z = -2z + 2z

Combine like terms: -2z + 2z = 0
29 + 1z = 0

Add '-29' to each side of the equation.
29 + -29 + 1z = 0 + -29

Combine like terms: 29 + -29 = 0
0 + 1z = 0 + -29
1z = 0 + -29

Combine like terms: 0 + -29 = -29
1z = -29

Divide each side by '1'.
z = -29

Simplifying
z = -29

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