4x+3(x-20)=402

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Solution for 4x+3(x-20)=402 equation:


Simplifying
4x + 3(x + -20) = 402

Reorder the terms:
4x + 3(-20 + x) = 402
4x + (-20 * 3 + x * 3) = 402
4x + (-60 + 3x) = 402

Reorder the terms:
-60 + 4x + 3x = 402

Combine like terms: 4x + 3x = 7x
-60 + 7x = 402

Solving
-60 + 7x = 402

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 7x = 402 + 60

Combine like terms: -60 + 60 = 0
0 + 7x = 402 + 60
7x = 402 + 60

Combine like terms: 402 + 60 = 462
7x = 462

Divide each side by '7'.
x = 66

Simplifying
x = 66

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