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3 years ago

Helpp what is 3(1-9a)+22a=2(2a-9)-15

Mathematics

2 answers:

Klio2033 [76]3 years ago

6 0

Answer:

a = 4

Step-by-step explanation:

1. Expand

2. Simplfy

3. Add 5a to both sides.

4. Simplify again

5. Add 33 to both sides.

6. Divide both sides by nine

7. Switch the sides up.

Pachacha [2.7K]3 years ago

3 0

Answer:

a=4

Step-by-step explanation:

3-27a+22a=4a-18-15

3-5a=4a-33

3=4a+5a-33

3+33=9a

36=9a

a=36/9

a=4

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<h2>Answer: x = 6</h2>

* = things that have changed or are being changed

<h2>Explanation:</h2>

1. rearrange terms

*4 4 + 3 * = 5 + 2 + 2 0

*3x + 44* = 5x + 2 + 20

2. combine like terms

3 + 44 = *5x + 2* + 20

3 + 44 = *7x* + 20

3. Subtract 4 4 from both sides of the equation

3x + 44 = 7x + 20

3x + 44 *-44* = 7x + 20 *-44*

4. Simplify

(Subtract the numbers)

3x + *44 - 44* = 7x + 20 - 44

3x = 7x + 20 - 44

(Again)

3x = 7x + 20 *- 44*

3x = 7x - 24

5. Subtract 7 from both sides of the equation

3x = 7x - 24

3x *- 7x* = 7x - 24 *- 7x*

6. Combine like terms

*3x - 7x* = 7x - 24 - 7x

*-4x* = 7x - 24 - 7x

(Again)

-4x = *7x* - 24 *- 7x*

-4x = - 24

7. Divide both sides of the equation by the same term

-4x = - 24

$\frac{-4x}{*-4*} = \frac{-24}{*-4*}$

8. Simplify

(Cancel terms that are in both the numerator and denominator)

$* \frac{-4x}{-4} * = \frac{-24}{-4}$

*x* = $\frac{-24}{-4}$

(Divide the numbers)

x = $\frac{-24}{-4}$

x = 6

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