4x-(3x+8)=42

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Solution for 4x-(3x+8)=42 equation:


Simplifying
4x + -1(3x + 8) = 42

Reorder the terms:
4x + -1(8 + 3x) = 42
4x + (8 * -1 + 3x * -1) = 42
4x + (-8 + -3x) = 42

Reorder the terms:
-8 + 4x + -3x = 42

Combine like terms: 4x + -3x = 1x
-8 + 1x = 42

Solving
-8 + 1x = 42

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 1x = 42 + 8

Combine like terms: -8 + 8 = 0
0 + 1x = 42 + 8
1x = 42 + 8

Combine like terms: 42 + 8 = 50
1x = 50

Divide each side by '1'.
x = 50

Simplifying
x = 50

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