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1) Solve for a. Show your work.
5(6.2a + 9.8) = 18

Sagot :

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Answer:

Simplifying

5(6.2a + 9.8) = 18

Reorder the terms:

5(9.8 + 6.2a) = 18

(9.8 * 5 + 6.2a * 5) = 18

(49 + 31a) = 18

Solving

49 + 31a = 18

Solving for variable 'a'.

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

Add '-49' to each side of the equation.

49 + -49 + 31a = 18 + -49

Combine like terms: 49 + -49 = 0

0 + 31a = 18 + -49

31a = 18 + -49

Combine like terms: 18 + -49 = -31

31a = -31

Divide each side by '31'.

a = -1

Simplifying

a = -1

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