7(x-0.8)-3(x+0.4)=0

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Solution for 7(x-0.8)-3(x+0.4)=0 equation:


Simplifying
7(x + -0.8) + -3(x + 0.4) = 0

Reorder the terms:
7(-0.8 + x) + -3(x + 0.4) = 0
(-0.8 * 7 + x * 7) + -3(x + 0.4) = 0
(-5.6 + 7x) + -3(x + 0.4) = 0

Reorder the terms:
-5.6 + 7x + -3(0.4 + x) = 0
-5.6 + 7x + (0.4 * -3 + x * -3) = 0
-5.6 + 7x + (-1.2 + -3x) = 0

Reorder the terms:
-5.6 + -1.2 + 7x + -3x = 0

Combine like terms: -5.6 + -1.2 = -6.8
-6.8 + 7x + -3x = 0

Combine like terms: 7x + -3x = 4x
-6.8 + 4x = 0

Solving
-6.8 + 4x = 0

Solving for variable 'x'.

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

Add '6.8' to each side of the equation.
-6.8 + 6.8 + 4x = 0 + 6.8

Combine like terms: -6.8 + 6.8 = 0.0
0.0 + 4x = 0 + 6.8
4x = 0 + 6.8

Combine like terms: 0 + 6.8 = 6.8
4x = 6.8

Divide each side by '4'.
x = 1.7

Simplifying
x = 1.7

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