20-4(18z+20)=4(-18z-15)

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Solution for 20-4(18z+20)=4(-18z-15) equation:


Simplifying
20 + -4(18z + 20) = 4(-18z + -15)

Reorder the terms:
20 + -4(20 + 18z) = 4(-18z + -15)
20 + (20 * -4 + 18z * -4) = 4(-18z + -15)
20 + (-80 + -72z) = 4(-18z + -15)

Combine like terms: 20 + -80 = -60
-60 + -72z = 4(-18z + -15)

Reorder the terms:
-60 + -72z = 4(-15 + -18z)
-60 + -72z = (-15 * 4 + -18z * 4)
-60 + -72z = (-60 + -72z)

Add '60' to each side of the equation.
-60 + 60 + -72z = -60 + 60 + -72z

Combine like terms: -60 + 60 = 0
0 + -72z = -60 + 60 + -72z
-72z = -60 + 60 + -72z

Combine like terms: -60 + 60 = 0
-72z = 0 + -72z
-72z = -72z

Add '72z' to each side of the equation.
-72z + 72z = -72z + 72z

Combine like terms: -72z + 72z = 0
0 = -72z + 72z

Combine like terms: -72z + 72z = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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