-3=0.7x-2(0.4x+1)

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Solution for -3=0.7x-2(0.4x+1) equation:


Simplifying
-3 = 0.7x + -2(0.4x + 1)

Reorder the terms:
-3 = 0.7x + -2(1 + 0.4x)
-3 = 0.7x + (1 * -2 + 0.4x * -2)
-3 = 0.7x + (-2 + -0.8x)

Reorder the terms:
-3 = -2 + 0.7x + -0.8x

Combine like terms: 0.7x + -0.8x = -0.1x
-3 = -2 + -0.1x

Solving
-3 = -2 + -0.1x

Solving for variable 'x'.

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

Add '0.1x' to each side of the equation.
-3 + 0.1x = -2 + -0.1x + 0.1x

Combine like terms: -0.1x + 0.1x = 0.0
-3 + 0.1x = -2 + 0.0
-3 + 0.1x = -2

Add '3' to each side of the equation.
-3 + 3 + 0.1x = -2 + 3

Combine like terms: -3 + 3 = 0
0 + 0.1x = -2 + 3
0.1x = -2 + 3

Combine like terms: -2 + 3 = 1
0.1x = 1

Divide each side by '0.1'.
x = 10

Simplifying
x = 10

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