100=x+5*20+2*30

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Solution for 100=x+5*20+2*30 equation:


Simplifying
100 = x + 5 * 20 + 2 * 30

Multiply 5 * 20
100 = x + 100 + 2 * 30

Multiply 2 * 30
100 = x + 100 + 60

Reorder the terms:
100 = 100 + 60 + x

Combine like terms: 100 + 60 = 160
100 = 160 + x

Solving
100 = 160 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
100 + -1x = 160 + x + -1x

Combine like terms: x + -1x = 0
100 + -1x = 160 + 0
100 + -1x = 160

Add '-100' to each side of the equation.
100 + -100 + -1x = 160 + -100

Combine like terms: 100 + -100 = 0
0 + -1x = 160 + -100
-1x = 160 + -100

Combine like terms: 160 + -100 = 60
-1x = 60

Divide each side by '-1'.
x = -60

Simplifying
x = -60

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