3x^5-2(x^5-3(x^5+4.2))=

Solution for 3x^5-2(x^5-3(x^5+4.2))= equation:

Simplifying
3x5 + -2(x5 + -3(x5 + 4.2)) = 0

Reorder the terms:
3x5 + -2(x5 + -3(4.2 + x5)) = 0
3x5 + -2(x5 + (4.2 * -3 + x5 * -3)) = 0
3x5 + -2(x5 + (-12.6 + -3x5)) = 0

Reorder the terms:
3x5 + -2(-12.6 + x5 + -3x5) = 0

Combine like terms: x5 + -3x5 = -2x5
3x5 + -2(-12.6 + -2x5) = 0
3x5 + (-12.6 * -2 + -2x5 * -2) = 0
3x5 + (25.2 + 4x5) = 0

Reorder the terms:
25.2 + 3x5 + 4x5 = 0

Combine like terms: 3x5 + 4x5 = 7x5
25.2 + 7x5 = 0

Solving
25.2 + 7x5 = 0

Solving for variable 'x'.

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

Add '-25.2' to each side of the equation.
25.2 + -25.2 + 7x5 = 0 + -25.2

Combine like terms: 25.2 + -25.2 = 0.0
0.0 + 7x5 = 0 + -25.2
7x5 = 0 + -25.2

Combine like terms: 0 + -25.2 = -25.2
7x5 = -25.2

Divide each side by '7'.
x5 = -3.6

Simplifying
x5 = -3.6

Reorder the terms:
3.6 + x5 = -3.6 + 3.6

Combine like terms: -3.6 + 3.6 = 0.0
3.6 + x5 = 0.0

The solution to this equation could not be determined.