-3.9(X-7)-2.2(X-2.1)=

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Solution for -3.9(X-7)-2.2(X-2.1)= equation: 


Simplifying
-3.9(X + -7) + -2.2(X + -2.1) = 0

Reorder the terms:
-3.9(-7 + X) + -2.2(X + -2.1) = 0
(-7 * -3.9 + X * -3.9) + -2.2(X + -2.1) = 0
(27.3 + -3.9X) + -2.2(X + -2.1) = 0

Reorder the terms:
27.3 + -3.9X + -2.2(-2.1 + X) = 0
27.3 + -3.9X + (-2.1 * -2.2 + X * -2.2) = 0
27.3 + -3.9X + (4.62 + -2.2X) = 0

Reorder the terms:
27.3 + 4.62 + -3.9X + -2.2X = 0

Combine like terms: 27.3 + 4.62 = 31.92
31.92 + -3.9X + -2.2X = 0

Combine like terms: -3.9X + -2.2X = -6.1X
31.92 + -6.1X = 0

Solving
31.92 + -6.1X = 0

Solving for variable 'X'.

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

Add '-31.92' to each side of the equation.
31.92 + -31.92 + -6.1X = 0 + -31.92

Combine like terms: 31.92 + -31.92 = 0.00
0.00 + -6.1X = 0 + -31.92
-6.1X = 0 + -31.92

Combine like terms: 0 + -31.92 = -31.92
-6.1X = -31.92

Divide each side by '-6.1'.
X = 5.232786885

Simplifying
X = 5.232786885

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