5x+2a-3x=-21

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Solution for 5x+2a-3x=-21 equation: 


Simplifying
5x + 2a + -3x = -21

Reorder the terms:
2a + 5x + -3x = -21

Combine like terms: 5x + -3x = 2x
2a + 2x = -21

Solving
2a + 2x = -21

Solving for variable 'a'.

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

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

Combine like terms: 2x + -2x = 0
2a + 0 = -21 + -2x
2a = -21 + -2x

Divide each side by '2'.
a = -10.5 + -1x

Simplifying
a = -10.5 + -1x

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