370=.5*20(a+25)

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Solution for 370=.5*20(a+25) equation:


Simplifying
370 = 0.5 * 20(a + 25)

Reorder the terms:
370 = 0.5 * 20(25 + a)

Multiply 0.5 * 20
370 = 10(25 + a)
370 = (25 * 10 + a * 10)
370 = (250 + 10a)

Solving
370 = 250 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
370 + -10a = 250 + 10a + -10a

Combine like terms: 10a + -10a = 0
370 + -10a = 250 + 0
370 + -10a = 250

Add '-370' to each side of the equation.
370 + -370 + -10a = 250 + -370

Combine like terms: 370 + -370 = 0
0 + -10a = 250 + -370
-10a = 250 + -370

Combine like terms: 250 + -370 = -120
-10a = -120

Divide each side by '-10'.
a = 12

Simplifying
a = 12

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