7.4x+9-8.4x=7

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Solution for 7.4x+9-8.4x=7 equation:


Simplifying
7.4x + 9 + -8.4x = 7

Reorder the terms:
9 + 7.4x + -8.4x = 7

Combine like terms: 7.4x + -8.4x = -1x
9 + -1x = 7

Solving
9 + -1x = 7

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -1x = 7 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = 7 + -9
-1x = 7 + -9

Combine like terms: 7 + -9 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2

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