(21x)-(18x+7)=

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Solution for (21x)-(18x+7)= equation:


Simplifying
(21x) + -1(18x + 7) = 0

Reorder the terms:
(21x) + -1(7 + 18x) = 0
(21x) + (7 * -1 + 18x * -1) = 0
(21x) + (-7 + -18x) = 0

Reorder the terms:
-7 + (21x) + -18x = 0

Combine like terms: (21x) + -18x = 3x
-7 + 3x = 0

Solving
-7 + 3x = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 3x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 3x = 0 + 7
3x = 0 + 7

Combine like terms: 0 + 7 = 7
3x = 7

Divide each side by '3'.
x = 2.333333333

Simplifying
x = 2.333333333

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