2(5z-7)-4(3z-7)=

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Solution for 2(5z-7)-4(3z-7)= equation:


Simplifying
2(5z + -7) + -4(3z + -7) = 0

Reorder the terms:
2(-7 + 5z) + -4(3z + -7) = 0
(-7 * 2 + 5z * 2) + -4(3z + -7) = 0
(-14 + 10z) + -4(3z + -7) = 0

Reorder the terms:
-14 + 10z + -4(-7 + 3z) = 0
-14 + 10z + (-7 * -4 + 3z * -4) = 0
-14 + 10z + (28 + -12z) = 0

Reorder the terms:
-14 + 28 + 10z + -12z = 0

Combine like terms: -14 + 28 = 14
14 + 10z + -12z = 0

Combine like terms: 10z + -12z = -2z
14 + -2z = 0

Solving
14 + -2z = 0

Solving for variable 'z'.

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

Add '-14' to each side of the equation.
14 + -14 + -2z = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -2z = 0 + -14
-2z = 0 + -14

Combine like terms: 0 + -14 = -14
-2z = -14

Divide each side by '-2'.
z = 7

Simplifying
z = 7

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