3.5+0.8z=3.7z-(3z-4)

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Solution for 3.5+0.8z=3.7z-(3z-4) equation:


Simplifying
3.5 + 0.8z = 3.7z + -1(3z + -4)

Reorder the terms:
3.5 + 0.8z = 3.7z + -1(-4 + 3z)
3.5 + 0.8z = 3.7z + (-4 * -1 + 3z * -1)
3.5 + 0.8z = 3.7z + (4 + -3z)

Reorder the terms:
3.5 + 0.8z = 4 + 3.7z + -3z

Combine like terms: 3.7z + -3z = 0.7z
3.5 + 0.8z = 4 + 0.7z

Solving
3.5 + 0.8z = 4 + 0.7z

Solving for variable 'z'.

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

Add '-0.7z' to each side of the equation.
3.5 + 0.8z + -0.7z = 4 + 0.7z + -0.7z

Combine like terms: 0.8z + -0.7z = 0.1z
3.5 + 0.1z = 4 + 0.7z + -0.7z

Combine like terms: 0.7z + -0.7z = 0.0
3.5 + 0.1z = 4 + 0.0
3.5 + 0.1z = 4

Add '-3.5' to each side of the equation.
3.5 + -3.5 + 0.1z = 4 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 0.1z = 4 + -3.5
0.1z = 4 + -3.5

Combine like terms: 4 + -3.5 = 0.5
0.1z = 0.5

Divide each side by '0.1'.
z = 5

Simplifying
z = 5

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