5(2z+7)=21-2(z-7)

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Solution for 5(2z+7)=21-2(z-7) equation:


Simplifying
5(2z + 7) = 21 + -2(z + -7)

Reorder the terms:
5(7 + 2z) = 21 + -2(z + -7)
(7 * 5 + 2z * 5) = 21 + -2(z + -7)
(35 + 10z) = 21 + -2(z + -7)

Reorder the terms:
35 + 10z = 21 + -2(-7 + z)
35 + 10z = 21 + (-7 * -2 + z * -2)
35 + 10z = 21 + (14 + -2z)

Combine like terms: 21 + 14 = 35
35 + 10z = 35 + -2z

Add '-35' to each side of the equation.
35 + -35 + 10z = 35 + -35 + -2z

Combine like terms: 35 + -35 = 0
0 + 10z = 35 + -35 + -2z
10z = 35 + -35 + -2z

Combine like terms: 35 + -35 = 0
10z = 0 + -2z
10z = -2z

Solving
10z = -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.
10z + 2z = -2z + 2z

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

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

Divide each side by '12'.
z = 0

Simplifying
z = 0

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