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xenn [34]
3 years ago
12

Simplify 5(a+6)−a+7a−18

Mathematics
1 answer:
NemiM [27]3 years ago
7 0

Answer:

11a + 12

Step-by-step explanation:

For this problem, we will simply use the distributive property both forwards to gather all of the like terms, and then backward to simplify the like terms.

5 ( a + 6 ) - a + 7a - 18

= 5a + 30 - a + 7a - 18

= 5a - a + 7a + 30 - 18

= a ( 5 + -1 + 7 ) + 30 - 18

= a ( 4 + 7 ) + 12

= a ( 11 ) + 12

= 11a + 12

Hence, the simplification for 5(a+6)-a+7a-18 is 11a + 12.

Cheers.

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