4x+8.40=7x+7.15

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Solution for 4x+8.40=7x+7.15 equation: 


Simplifying
4x + 8.40 = 7x + 7.15

Reorder the terms:
8.40 + 4x = 7x + 7.15

Reorder the terms:
8.40 + 4x = 7.15 + 7x

Solving
8.40 + 4x = 7.15 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
8.40 + 4x + -7x = 7.15 + 7x + -7x

Combine like terms: 4x + -7x = -3x
8.40 + -3x = 7.15 + 7x + -7x

Combine like terms: 7x + -7x = 0
8.40 + -3x = 7.15 + 0
8.40 + -3x = 7.15

Add '-8.40' to each side of the equation.
8.40 + -8.40 + -3x = 7.15 + -8.40

Combine like terms: 8.40 + -8.40 = 0.00
0.00 + -3x = 7.15 + -8.40
-3x = 7.15 + -8.40

Combine like terms: 7.15 + -8.40 = -1.25
-3x = -1.25

Divide each side by '-3'.
x = 0.4166666667

Simplifying
x = 0.4166666667

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