3+42x+48=-6+3x-21

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Solution for 3+42x+48=-6+3x-21 equation: 


Simplifying
3 + 42x + 48 = -6 + 3x + -21

Reorder the terms:
3 + 48 + 42x = -6 + 3x + -21

Combine like terms: 3 + 48 = 51
51 + 42x = -6 + 3x + -21

Reorder the terms:
51 + 42x = -6 + -21 + 3x

Combine like terms: -6 + -21 = -27
51 + 42x = -27 + 3x

Solving
51 + 42x = -27 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
51 + 42x + -3x = -27 + 3x + -3x

Combine like terms: 42x + -3x = 39x
51 + 39x = -27 + 3x + -3x

Combine like terms: 3x + -3x = 0
51 + 39x = -27 + 0
51 + 39x = -27

Add '-51' to each side of the equation.
51 + -51 + 39x = -27 + -51

Combine like terms: 51 + -51 = 0
0 + 39x = -27 + -51
39x = -27 + -51

Combine like terms: -27 + -51 = -78
39x = -78

Divide each side by '39'.
x = -2

Simplifying
x = -2

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