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

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Solution for 3(4z+7)-2(z-1)= equation:


Simplifying
3(4z + 7) + -2(z + -1) = 0

Reorder the terms:
3(7 + 4z) + -2(z + -1) = 0
(7 * 3 + 4z * 3) + -2(z + -1) = 0
(21 + 12z) + -2(z + -1) = 0

Reorder the terms:
21 + 12z + -2(-1 + z) = 0
21 + 12z + (-1 * -2 + z * -2) = 0
21 + 12z + (2 + -2z) = 0

Reorder the terms:
21 + 2 + 12z + -2z = 0

Combine like terms: 21 + 2 = 23
23 + 12z + -2z = 0

Combine like terms: 12z + -2z = 10z
23 + 10z = 0

Solving
23 + 10z = 0

Solving for variable 'z'.

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

Add '-23' to each side of the equation.
23 + -23 + 10z = 0 + -23

Combine like terms: 23 + -23 = 0
0 + 10z = 0 + -23
10z = 0 + -23

Combine like terms: 0 + -23 = -23
10z = -23

Divide each side by '10'.
z = -2.3

Simplifying
z = -2.3

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