0.9x-0.4x+4=-7

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Solution for 0.9x-0.4x+4=-7 equation:


Simplifying
0.9x + -0.4x + 4 = -7

Reorder the terms:
4 + 0.9x + -0.4x = -7

Combine like terms: 0.9x + -0.4x = 0.5x
4 + 0.5x = -7

Solving
4 + 0.5x = -7

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 0.5x = -7 + -4

Combine like terms: 4 + -4 = 0
0 + 0.5x = -7 + -4
0.5x = -7 + -4

Combine like terms: -7 + -4 = -11
0.5x = -11

Divide each side by '0.5'.
x = -22

Simplifying
x = -22

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