-2.1=3a+10.5

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Solution for -2.1=3a+10.5 equation:


Simplifying
-2.1 = 3a + 10.5

Reorder the terms:
-2.1 = 10.5 + 3a

Solving
-2.1 = 10.5 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-2.1 + -3a = 10.5 + 3a + -3a

Combine like terms: 3a + -3a = 0
-2.1 + -3a = 10.5 + 0
-2.1 + -3a = 10.5

Add '2.1' to each side of the equation.
-2.1 + 2.1 + -3a = 10.5 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + -3a = 10.5 + 2.1
-3a = 10.5 + 2.1

Combine like terms: 10.5 + 2.1 = 12.6
-3a = 12.6

Divide each side by '-3'.
a = -4.2

Simplifying
a = -4.2

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