2(z-20)+3z=-9

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Solution for 2(z-20)+3z=-9 equation:


Simplifying
2(z + -20) + 3z = -9

Reorder the terms:
2(-20 + z) + 3z = -9
(-20 * 2 + z * 2) + 3z = -9
(-40 + 2z) + 3z = -9

Combine like terms: 2z + 3z = 5z
-40 + 5z = -9

Solving
-40 + 5z = -9

Solving for variable 'z'.

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

Add '40' to each side of the equation.
-40 + 40 + 5z = -9 + 40

Combine like terms: -40 + 40 = 0
0 + 5z = -9 + 40
5z = -9 + 40

Combine like terms: -9 + 40 = 31
5z = 31

Divide each side by '5'.
z = 6.2

Simplifying
z = 6.2

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