3(5z-1)-5(z+3)=7(x+1)

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Solution for 3(5z-1)-5(z+3)=7(x+1) equation:


Simplifying
3(5z + -1) + -5(z + 3) = 7(x + 1)

Reorder the terms:
3(-1 + 5z) + -5(z + 3) = 7(x + 1)
(-1 * 3 + 5z * 3) + -5(z + 3) = 7(x + 1)
(-3 + 15z) + -5(z + 3) = 7(x + 1)

Reorder the terms:
-3 + 15z + -5(3 + z) = 7(x + 1)
-3 + 15z + (3 * -5 + z * -5) = 7(x + 1)
-3 + 15z + (-15 + -5z) = 7(x + 1)

Reorder the terms:
-3 + -15 + 15z + -5z = 7(x + 1)

Combine like terms: -3 + -15 = -18
-18 + 15z + -5z = 7(x + 1)

Combine like terms: 15z + -5z = 10z
-18 + 10z = 7(x + 1)

Reorder the terms:
-18 + 10z = 7(1 + x)
-18 + 10z = (1 * 7 + x * 7)
-18 + 10z = (7 + 7x)

Solving
-18 + 10z = 7 + 7x

Solving for variable 'z'.

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

Add '18' to each side of the equation.
-18 + 18 + 10z = 7 + 18 + 7x

Combine like terms: -18 + 18 = 0
0 + 10z = 7 + 18 + 7x
10z = 7 + 18 + 7x

Combine like terms: 7 + 18 = 25
10z = 25 + 7x

Divide each side by '10'.
z = 2.5 + 0.7x

Simplifying
z = 2.5 + 0.7x

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