7z-5-5(z+1)=-(4z+7)

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Solution for 7z-5-5(z+1)=-(4z+7) equation:


Simplifying
7z + -5 + -5(z + 1) = -1(4z + 7)

Reorder the terms:
7z + -5 + -5(1 + z) = -1(4z + 7)
7z + -5 + (1 * -5 + z * -5) = -1(4z + 7)
7z + -5 + (-5 + -5z) = -1(4z + 7)

Reorder the terms:
-5 + -5 + 7z + -5z = -1(4z + 7)

Combine like terms: -5 + -5 = -10
-10 + 7z + -5z = -1(4z + 7)

Combine like terms: 7z + -5z = 2z
-10 + 2z = -1(4z + 7)

Reorder the terms:
-10 + 2z = -1(7 + 4z)
-10 + 2z = (7 * -1 + 4z * -1)
-10 + 2z = (-7 + -4z)

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

Solving for variable 'z'.

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

Add '4z' to each side of the equation.
-10 + 2z + 4z = -7 + -4z + 4z

Combine like terms: 2z + 4z = 6z
-10 + 6z = -7 + -4z + 4z

Combine like terms: -4z + 4z = 0
-10 + 6z = -7 + 0
-10 + 6z = -7

Add '10' to each side of the equation.
-10 + 10 + 6z = -7 + 10

Combine like terms: -10 + 10 = 0
0 + 6z = -7 + 10
6z = -7 + 10

Combine like terms: -7 + 10 = 3
6z = 3

Divide each side by '6'.
z = 0.5

Simplifying
z = 0.5

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