0.50-3=0.3(2a+3)

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Solution for 0.50-3=0.3(2a+3) equation:


Simplifying
0.50 + -3 = 0.3(2a + 3)

Combine like terms: 0.50 + -3 = -2.5
-2.5 = 0.3(2a + 3)

Reorder the terms:
-2.5 = 0.3(3 + 2a)
-2.5 = (3 * 0.3 + 2a * 0.3)
-2.5 = (0.9 + 0.6a)

Solving
-2.5 = 0.9 + 0.6a

Solving for variable 'a'.

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

Add '-0.6a' to each side of the equation.
-2.5 + -0.6a = 0.9 + 0.6a + -0.6a

Combine like terms: 0.6a + -0.6a = 0.0
-2.5 + -0.6a = 0.9 + 0.0
-2.5 + -0.6a = 0.9

Add '2.5' to each side of the equation.
-2.5 + 2.5 + -0.6a = 0.9 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + -0.6a = 0.9 + 2.5
-0.6a = 0.9 + 2.5

Combine like terms: 0.9 + 2.5 = 3.4
-0.6a = 3.4

Divide each side by '-0.6'.
a = -5.666666667

Simplifying
a = -5.666666667

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