5(z+7)-4(z-15)=40

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Solution for 5(z+7)-4(z-15)=40 equation:


Simplifying
5(z + 7) + -4(z + -15) = 40

Reorder the terms:
5(7 + z) + -4(z + -15) = 40
(7 * 5 + z * 5) + -4(z + -15) = 40
(35 + 5z) + -4(z + -15) = 40

Reorder the terms:
35 + 5z + -4(-15 + z) = 40
35 + 5z + (-15 * -4 + z * -4) = 40
35 + 5z + (60 + -4z) = 40

Reorder the terms:
35 + 60 + 5z + -4z = 40

Combine like terms: 35 + 60 = 95
95 + 5z + -4z = 40

Combine like terms: 5z + -4z = 1z
95 + 1z = 40

Solving
95 + 1z = 40

Solving for variable 'z'.

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

Add '-95' to each side of the equation.
95 + -95 + 1z = 40 + -95

Combine like terms: 95 + -95 = 0
0 + 1z = 40 + -95
1z = 40 + -95

Combine like terms: 40 + -95 = -55
1z = -55

Divide each side by '1'.
z = -55

Simplifying
z = -55

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