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Alchen [17]
4 years ago
12

Ricardo says that the expression y+4 is equivalent to the expression 1y+4. is he correct? explain

Mathematics
2 answers:
Bas_tet [7]4 years ago
7 0
Yes because there is an invisible one in fron to y
1y means 1 times y
basically you can multiply 1 times anything and it will remain the same so therefor
y=1y=(1)(y)=(1)(1)(y)=(1)(1)(1)(y)=(1)(1)(1)(1)(1)(1)(1)(1)(1)(1)(1)(y) etc

so basically he is correct since y=1y so therefor
y+4=1y+4
subtract 4 from both sides
y=1y
subsitute
y=1y
1y=1y
true
MrRa [10]4 years ago
3 0
Correct! That is because next to every variable is an invisible 'one'. So that means that their is one 'y'. 

y +4 = 1y + 4
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