.4(4z+6)+17.4=.7(4z-6)

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Solution for .4(4z+6)+17.4=.7(4z-6) equation:


Simplifying
0.4(4z + 6) + 17.4 = 0.7(4z + -6)

Reorder the terms:
0.4(6 + 4z) + 17.4 = 0.7(4z + -6)
(6 * 0.4 + 4z * 0.4) + 17.4 = 0.7(4z + -6)
(2.4 + 1.6z) + 17.4 = 0.7(4z + -6)

Reorder the terms:
2.4 + 17.4 + 1.6z = 0.7(4z + -6)

Combine like terms: 2.4 + 17.4 = 19.8
19.8 + 1.6z = 0.7(4z + -6)

Reorder the terms:
19.8 + 1.6z = 0.7(-6 + 4z)
19.8 + 1.6z = (-6 * 0.7 + 4z * 0.7)
19.8 + 1.6z = (-4.2 + 2.8z)

Solving
19.8 + 1.6z = -4.2 + 2.8z

Solving for variable 'z'.

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

Add '-2.8z' to each side of the equation.
19.8 + 1.6z + -2.8z = -4.2 + 2.8z + -2.8z

Combine like terms: 1.6z + -2.8z = -1.2z
19.8 + -1.2z = -4.2 + 2.8z + -2.8z

Combine like terms: 2.8z + -2.8z = 0.0
19.8 + -1.2z = -4.2 + 0.0
19.8 + -1.2z = -4.2

Add '-19.8' to each side of the equation.
19.8 + -19.8 + -1.2z = -4.2 + -19.8

Combine like terms: 19.8 + -19.8 = 0.0
0.0 + -1.2z = -4.2 + -19.8
-1.2z = -4.2 + -19.8

Combine like terms: -4.2 + -19.8 = -24
-1.2z = -24

Divide each side by '-1.2'.
z = 20

Simplifying
z = 20

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