(14x-5)-(18x-4)=-21

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Solution for (14x-5)-(18x-4)=-21 equation:


Simplifying
(14x + -5) + -1(18x + -4) = -21

Reorder the terms:
(-5 + 14x) + -1(18x + -4) = -21

Remove parenthesis around (-5 + 14x)
-5 + 14x + -1(18x + -4) = -21

Reorder the terms:
-5 + 14x + -1(-4 + 18x) = -21
-5 + 14x + (-4 * -1 + 18x * -1) = -21
-5 + 14x + (4 + -18x) = -21

Reorder the terms:
-5 + 4 + 14x + -18x = -21

Combine like terms: -5 + 4 = -1
-1 + 14x + -18x = -21

Combine like terms: 14x + -18x = -4x
-1 + -4x = -21

Solving
-1 + -4x = -21

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + -4x = -21 + 1

Combine like terms: -1 + 1 = 0
0 + -4x = -21 + 1
-4x = -21 + 1

Combine like terms: -21 + 1 = -20
-4x = -20

Divide each side by '-4'.
x = 5

Simplifying
x = 5

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