10z+7(-z-7)=-43

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Solution for 10z+7(-z-7)=-43 equation:


Simplifying
10z + 7(-1z + -7) = -43

Reorder the terms:
10z + 7(-7 + -1z) = -43
10z + (-7 * 7 + -1z * 7) = -43
10z + (-49 + -7z) = -43

Reorder the terms:
-49 + 10z + -7z = -43

Combine like terms: 10z + -7z = 3z
-49 + 3z = -43

Solving
-49 + 3z = -43

Solving for variable 'z'.

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

Add '49' to each side of the equation.
-49 + 49 + 3z = -43 + 49

Combine like terms: -49 + 49 = 0
0 + 3z = -43 + 49
3z = -43 + 49

Combine like terms: -43 + 49 = 6
3z = 6

Divide each side by '3'.
z = 2

Simplifying
z = 2

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