3x+4(550-x)=1980

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Solution for 3x+4(550-x)=1980 equation:


Simplifying
3x + 4(550 + -1x) = 1980
3x + (550 * 4 + -1x * 4) = 1980
3x + (2200 + -4x) = 1980

Reorder the terms:
2200 + 3x + -4x = 1980

Combine like terms: 3x + -4x = -1x
2200 + -1x = 1980

Solving
2200 + -1x = 1980

Solving for variable 'x'.

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

Add '-2200' to each side of the equation.
2200 + -2200 + -1x = 1980 + -2200

Combine like terms: 2200 + -2200 = 0
0 + -1x = 1980 + -2200
-1x = 1980 + -2200

Combine like terms: 1980 + -2200 = -220
-1x = -220

Divide each side by '-1'.
x = 220

Simplifying
x = 220

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