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Alik [6]
3 years ago
11

10 − 3(2a − 1) = 3a + 1

Mathematics
2 answers:
sveticcg [70]3 years ago
7 0
<h3> Answer:</h3>

a = 4/3

<h3>Step-by-step explanation: </h3>

10 - 3( 2a - 1 ) = 3a + 1

  • use the distributive property to multiply -3 by 2a -1

10 - 3 × 2a -3 × -1 = 3a + 1

<u>10 </u>- 6a<u> + 3 </u>= 3a + 1

  • collect like terms

<u>10 + 3</u> - 6a = 3a + 1

13 - 6a = 3a + 1

  • Subtract 3a from both sides

13 <u>- 6a - 3a </u>= <u>3a - 3a</u> + 1

13 - 9a = 1

  • subtract 13 from both side

<u>13 - 13</u> - 9a = <u>1 - 13</u>

- 9a = - 12

  • divide both side by -9

-9a / - 9 = - 12 / - 9

a = 4/3

xxMikexx [17]3 years ago
4 0

Answer:

4/3 =a

Step-by-step explanation:

10 − 3(2a − 1) = 3a + 1

Distribute

10 -6a +3 = 3a+1

Combine like terms

13 -6a = 3a+1

Add 6a to each side

13-6a+6a = 3a+6a +1

13 = 9a+1

Subtract 1 from each side

13-1 = 9a+1-1

12 = 9a

Divide by 9

12/9 = 9a/9

4/3 =a

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