2(5z-1)-3(z+6)=2(2+1)

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Solution for 2(5z-1)-3(z+6)=2(2+1) equation:


Simplifying
2(5z + -1) + -3(z + 6) = 2(2 + 1)

Reorder the terms:
2(-1 + 5z) + -3(z + 6) = 2(2 + 1)
(-1 * 2 + 5z * 2) + -3(z + 6) = 2(2 + 1)
(-2 + 10z) + -3(z + 6) = 2(2 + 1)

Reorder the terms:
-2 + 10z + -3(6 + z) = 2(2 + 1)
-2 + 10z + (6 * -3 + z * -3) = 2(2 + 1)
-2 + 10z + (-18 + -3z) = 2(2 + 1)

Reorder the terms:
-2 + -18 + 10z + -3z = 2(2 + 1)

Combine like terms: -2 + -18 = -20
-20 + 10z + -3z = 2(2 + 1)

Combine like terms: 10z + -3z = 7z
-20 + 7z = 2(2 + 1)

Combine like terms: 2 + 1 = 3
-20 + 7z = 2(3)

Multiply 2 * 3
-20 + 7z = 6

Solving
-20 + 7z = 6

Solving for variable 'z'.

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

Add '20' to each side of the equation.
-20 + 20 + 7z = 6 + 20

Combine like terms: -20 + 20 = 0
0 + 7z = 6 + 20
7z = 6 + 20

Combine like terms: 6 + 20 = 26
7z = 26

Divide each side by '7'.
z = 3.714285714

Simplifying
z = 3.714285714

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