1a + 1b because they are different terms and could not be added together. But 1a × 1b would be 1
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6b+b+b is the same as 6b+1b+1b you can add the numbers together if the variables are the same. 6b+1b+1b=8b
1a+3b 2a+4b=3a +7b
1a.) 7433 1b.) -3347 2.) -80 3.) shoelace
It is: 7b+4b-1b = 10b when simplified
I--2a+b=2c+2d II--2a+b=c+2d III--a+2b=3d * Here if we perform (I)-(II), we get, c=0 * Using the c we can prove b=0 using (I)-(III). * Now replace 'b' & 'c' as 0 in (I), then we get a=d. Email me at yash2008gates@gmail.com for any queries. I will be very thankful to receive your queries.