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3 years ago

4a - 5 + 2a + 9 = 28

Mathematics

2 answers:

BaLLatris [955]3 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]3 years ago

5 0

Answer:

a = 4

Step-by-step explanation:

1. Combine like terms

4a - 5 + 2a + 9 = 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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