(7z-3)-(4z-11)=47

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Solution for (7z-3)-(4z-11)=47 equation:


Simplifying
(7z + -3) + -1(4z + -11) = 47

Reorder the terms:
(-3 + 7z) + -1(4z + -11) = 47

Remove parenthesis around (-3 + 7z)
-3 + 7z + -1(4z + -11) = 47

Reorder the terms:
-3 + 7z + -1(-11 + 4z) = 47
-3 + 7z + (-11 * -1 + 4z * -1) = 47
-3 + 7z + (11 + -4z) = 47

Reorder the terms:
-3 + 11 + 7z + -4z = 47

Combine like terms: -3 + 11 = 8
8 + 7z + -4z = 47

Combine like terms: 7z + -4z = 3z
8 + 3z = 47

Solving
8 + 3z = 47

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + 3z = 47 + -8

Combine like terms: 8 + -8 = 0
0 + 3z = 47 + -8
3z = 47 + -8

Combine like terms: 47 + -8 = 39
3z = 39

Divide each side by '3'.
z = 13

Simplifying
z = 13

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