X+y+z+80+90=100

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Solution for X+y+z+80+90=100 equation:


Simplifying
X + y + z + 80 + 90 = 100

Reorder the terms:
80 + 90 + X + y + z = 100

Combine like terms: 80 + 90 = 170
170 + X + y + z = 100

Solving
170 + X + y + z = 100

Solving for variable 'X'.

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

Add '-170' to each side of the equation.
170 + X + y + -170 + z = 100 + -170

Reorder the terms:
170 + -170 + X + y + z = 100 + -170

Combine like terms: 170 + -170 = 0
0 + X + y + z = 100 + -170
X + y + z = 100 + -170

Combine like terms: 100 + -170 = -70
X + y + z = -70

Add '-1y' to each side of the equation.
X + y + -1y + z = -70 + -1y

Combine like terms: y + -1y = 0
X + 0 + z = -70 + -1y
X + z = -70 + -1y

Add '-1z' to each side of the equation.
X + z + -1z = -70 + -1y + -1z

Combine like terms: z + -1z = 0
X + 0 = -70 + -1y + -1z
X = -70 + -1y + -1z

Simplifying
X = -70 + -1y + -1z

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