1. 4b (+) = 7 (-)
3. 28
Solution:
Substitute: 6x2+2x(9-1)
Calculate the product or quotient: 12+2x(9-1)
Calculate the sum or difference: 12+2x8
Calculate the product or quotient: 12+16
Calculate the sum or difference:28
Answer: 28
I don't know what is the answer to the second one but hope this helps you :)
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Answers & Comments
1. 4b (+) = 7 (-)
3. 28
Solution:
Substitute: 6x2+2x(9-1)
Calculate the product or quotient: 12+2x(9-1)
Calculate the sum or difference: 12+2x8
Calculate the product or quotient: 12+16
Calculate the sum or difference:28
Answer: 28
I don't know what is the answer to the second one but hope this helps you :)