3x+4(x-20)=298

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Solution for 3x+4(x-20)=298 equation:


Simplifying
3x + 4(x + -20) = 298

Reorder the terms:
3x + 4(-20 + x) = 298
3x + (-20 * 4 + x * 4) = 298
3x + (-80 + 4x) = 298

Reorder the terms:
-80 + 3x + 4x = 298

Combine like terms: 3x + 4x = 7x
-80 + 7x = 298

Solving
-80 + 7x = 298

Solving for variable 'x'.

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

Add '80' to each side of the equation.
-80 + 80 + 7x = 298 + 80

Combine like terms: -80 + 80 = 0
0 + 7x = 298 + 80
7x = 298 + 80

Combine like terms: 298 + 80 = 378
7x = 378

Divide each side by '7'.
x = 54

Simplifying
x = 54

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