.4(a-10)-5=19

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Solution for .4(a-10)-5=19 equation:


Simplifying
0.4(a + -10) + -5 = 19

Reorder the terms:
0.4(-10 + a) + -5 = 19
(-10 * 0.4 + a * 0.4) + -5 = 19
(-4 + 0.4a) + -5 = 19

Reorder the terms:
-4 + -5 + 0.4a = 19

Combine like terms: -4 + -5 = -9
-9 + 0.4a = 19

Solving
-9 + 0.4a = 19

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 0.4a = 19 + 9

Combine like terms: -9 + 9 = 0
0 + 0.4a = 19 + 9
0.4a = 19 + 9

Combine like terms: 19 + 9 = 28
0.4a = 28

Divide each side by '0.4'.
a = 70

Simplifying
a = 70

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