13x^2+42b-78=-2x^2-6

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Solution for 13x^2+42b-78=-2x^2-6 equation:


Simplifying
13x2 + 42b + -78 = -2x2 + -6

Reorder the terms:
-78 + 42b + 13x2 = -2x2 + -6

Reorder the terms:
-78 + 42b + 13x2 = -6 + -2x2

Solving
-78 + 42b + 13x2 = -6 + -2x2

Solving for variable 'b'.

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

Add '78' to each side of the equation.
-78 + 42b + 78 + 13x2 = -6 + 78 + -2x2

Reorder the terms:
-78 + 78 + 42b + 13x2 = -6 + 78 + -2x2

Combine like terms: -78 + 78 = 0
0 + 42b + 13x2 = -6 + 78 + -2x2
42b + 13x2 = -6 + 78 + -2x2

Combine like terms: -6 + 78 = 72
42b + 13x2 = 72 + -2x2

Add '-13x2' to each side of the equation.
42b + 13x2 + -13x2 = 72 + -2x2 + -13x2

Combine like terms: 13x2 + -13x2 = 0
42b + 0 = 72 + -2x2 + -13x2
42b = 72 + -2x2 + -13x2

Combine like terms: -2x2 + -13x2 = -15x2
42b = 72 + -15x2

Divide each side by '42'.
b = 1.714285714 + -0.3571428571x2

Simplifying
b = 1.714285714 + -0.3571428571x2

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