4+3=20X-21

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Solution for 4+3=20X-21 equation:


Simplifying
4 + 3 = 20X + -21

Combine like terms: 4 + 3 = 7
7 = 20X + -21

Reorder the terms:
7 = -21 + 20X

Solving
7 = -21 + 20X

Solving for variable 'X'.

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

Add '-20X' to each side of the equation.
7 + -20X = -21 + 20X + -20X

Combine like terms: 20X + -20X = 0
7 + -20X = -21 + 0
7 + -20X = -21

Add '-7' to each side of the equation.
7 + -7 + -20X = -21 + -7

Combine like terms: 7 + -7 = 0
0 + -20X = -21 + -7
-20X = -21 + -7

Combine like terms: -21 + -7 = -28
-20X = -28

Divide each side by '-20'.
X = 1.4

Simplifying
X = 1.4

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