2x-78=-3(7-0.8x)

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Solution for 2x-78=-3(7-0.8x) equation:


Simplifying
2x + -78 = -3(7 + -0.8x)

Reorder the terms:
-78 + 2x = -3(7 + -0.8x)
-78 + 2x = (7 * -3 + -0.8x * -3)
-78 + 2x = (-21 + 2.4x)

Solving
-78 + 2x = -21 + 2.4x

Solving for variable 'x'.

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

Add '-2.4x' to each side of the equation.
-78 + 2x + -2.4x = -21 + 2.4x + -2.4x

Combine like terms: 2x + -2.4x = -0.4x
-78 + -0.4x = -21 + 2.4x + -2.4x

Combine like terms: 2.4x + -2.4x = 0.0
-78 + -0.4x = -21 + 0.0
-78 + -0.4x = -21

Add '78' to each side of the equation.
-78 + 78 + -0.4x = -21 + 78

Combine like terms: -78 + 78 = 0
0 + -0.4x = -21 + 78
-0.4x = -21 + 78

Combine like terms: -21 + 78 = 57
-0.4x = 57

Divide each side by '-0.4'.
x = -142.5

Simplifying
x = -142.5

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