0.3(a+19)=2.8(a-3)

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Solution for 0.3(a+19)=2.8(a-3) equation:


Simplifying
0.3(a + 19) = 2.8(a + -3)

Reorder the terms:
0.3(19 + a) = 2.8(a + -3)
(19 * 0.3 + a * 0.3) = 2.8(a + -3)
(5.7 + 0.3a) = 2.8(a + -3)

Reorder the terms:
5.7 + 0.3a = 2.8(-3 + a)
5.7 + 0.3a = (-3 * 2.8 + a * 2.8)
5.7 + 0.3a = (-8.4 + 2.8a)

Solving
5.7 + 0.3a = -8.4 + 2.8a

Solving for variable 'a'.

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

Add '-2.8a' to each side of the equation.
5.7 + 0.3a + -2.8a = -8.4 + 2.8a + -2.8a

Combine like terms: 0.3a + -2.8a = -2.5a
5.7 + -2.5a = -8.4 + 2.8a + -2.8a

Combine like terms: 2.8a + -2.8a = 0.0
5.7 + -2.5a = -8.4 + 0.0
5.7 + -2.5a = -8.4

Add '-5.7' to each side of the equation.
5.7 + -5.7 + -2.5a = -8.4 + -5.7

Combine like terms: 5.7 + -5.7 = 0.0
0.0 + -2.5a = -8.4 + -5.7
-2.5a = -8.4 + -5.7

Combine like terms: -8.4 + -5.7 = -14.1
-2.5a = -14.1

Divide each side by '-2.5'.
a = 5.64

Simplifying
a = 5.64

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