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Zinaida [17]
4 years ago
11

6x+2 (3x-9y + 5) + (-9)

Mathematics
2 answers:
olya-2409 [2.1K]4 years ago
4 0

Answer:

6x+2(3x-9y+5)-9

6x+6x-18y+10-9

(6x+6x)-18y+(10-9)

12x-18y+1

Step-by-step explanation:

First remove parentheses

Second expand by distributing term

Third collect like terms

Fourth simplify

vazorg [7]4 years ago
3 0

Answer: 6x+2(3x-9y+5)+(-9)  

Final result :

 12x - 18y + 1

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (6x +  2 • (3x - 9y + 5)) +  -9

Step  2  :

Final result :

 12x - 18y + 1

Step-by-step explanation:

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class A has 13 pupils and class b has 28 pupils both classes sit the same maths test the mean score for class A is 23 the mean s
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