1.4+7=21x

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Solution for 1.4+7=21x equation:


Simplifying
1.4 + 7 = 21x

Combine like terms: 1.4 + 7 = 8.4
8.4 = 21x

Solving
8.4 = 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
8.4 + -21x = 21x + -21x

Combine like terms: 21x + -21x = 0
8.4 + -21x = 0

Add '-8.4' to each side of the equation.
8.4 + -8.4 + -21x = 0 + -8.4

Combine like terms: 8.4 + -8.4 = 0.0
0.0 + -21x = 0 + -8.4
-21x = 0 + -8.4

Combine like terms: 0 + -8.4 = -8.4
-21x = -8.4

Divide each side by '-21'.
x = 0.4

Simplifying
x = 0.4

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