3-x*4=8-21

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Solution for 3-x*4=8-21 equation:


Simplifying
3 + -1x * 4 = 8 + -21

Reorder the terms for easier multiplication:
3 + -1 * 4x = 8 + -21

Multiply -1 * 4
3 + -4x = 8 + -21

Combine like terms: 8 + -21 = -13
3 + -4x = -13

Solving
3 + -4x = -13

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -4x = -13 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = -13 + -3
-4x = -13 + -3

Combine like terms: -13 + -3 = -16
-4x = -16

Divide each side by '-4'.
x = 4

Simplifying
x = 4

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