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I don't know what number to multiply these coefficients by to be able to cancle and combine! HELP!

I don't know what number to multiply these coefficients by to be able to cancle and-example-1

1 Answer

5 votes

we have

x-y=100 ------> equation A

(3/8)x+(7/8)y-2000 -------> equation B

Multiply equation A by 7/8

so

(7/8)x-(7/8)y=700/8

adds equation B

User Pinakin Kansara
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