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topjm [15]
4 years ago
9

4a - 5 + 2a + 9 = 28

Mathematics
2 answers:
BaLLatris [955]4 years ago
8 0

Answer:a=4

Step-by-step explanation:

Simplifying

4a + -5 + 2a + 9 = 28

Reorder the terms:

-5 + 9 + 4a + 2a = 28

Combine like terms: -5 + 9 = 4

4 + 4a + 2a = 28

Combine like terms: 4a + 2a = 6a

4 + 6a = 28

Solving

4 + 6a = 28

Solving for variable 'a'.

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

Add '-4' to each side of the equation.

4 + -4 + 6a = 28 + -4

Combine like terms: 4 + -4 = 0

0 + 6a = 28 + -4

6a = 28 + -4

Combine like terms: 28 + -4 = 24

6a = 24

Divide each side by '6'.

a = 4

Simplifying

a = 4

Kaylis [27]4 years ago
5 0

Answer:

a = 4

Step-by-step explanation:

1. Combine like terms

<u>4a</u><em> </em><em>- 5</em> +<u> 2a</u> <em>+ 9</em> = 28

6a + 4 = 28

2. Subtract 4 from both sides of the equal sign

6a  = 24

3. Divide both sides of the equal sign by six

a = 4

Hope this helped :)

brainliest?

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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