4(3z-7)+9(5z+4)=

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Solution for 4(3z-7)+9(5z+4)= equation:


Simplifying
4(3z + -7) + 9(5z + 4) = 0

Reorder the terms:
4(-7 + 3z) + 9(5z + 4) = 0
(-7 * 4 + 3z * 4) + 9(5z + 4) = 0
(-28 + 12z) + 9(5z + 4) = 0

Reorder the terms:
-28 + 12z + 9(4 + 5z) = 0
-28 + 12z + (4 * 9 + 5z * 9) = 0
-28 + 12z + (36 + 45z) = 0

Reorder the terms:
-28 + 36 + 12z + 45z = 0

Combine like terms: -28 + 36 = 8
8 + 12z + 45z = 0

Combine like terms: 12z + 45z = 57z
8 + 57z = 0

Solving
8 + 57z = 0

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 + 57z = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 57z = 0 + -8
57z = 0 + -8

Combine like terms: 0 + -8 = -8
57z = -8

Divide each side by '57'.
z = -0.1403508772

Simplifying
z = -0.1403508772

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