2x^2+5ax^2+(-7x^2)=

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Solution for 2x^2+5ax^2+(-7x^2)= equation:


Simplifying
2x2 + 5ax2 + (-7x2) = 0

Reorder the terms:
5ax2 + 2x2 + (-7x2) = 0

Combine like terms: 2x2 + (-7x2) = -5x2
5ax2 + -5x2 = 0

Solving
5ax2 + -5x2 = 0

Solving for variable 'a'.

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

Add '5x2' to each side of the equation.
5ax2 + -5x2 + 5x2 = 0 + 5x2

Combine like terms: -5x2 + 5x2 = 0
5ax2 + 0 = 0 + 5x2
5ax2 = 0 + 5x2
Remove the zero:
5ax2 = 5x2

Divide each side by '5x2'.
a = 1

Simplifying
a = 1

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