It is given that
a+b=20 -------------------- (1)
b+c=30 -----------------------(2)
We have to calculate
3 a + 4 b +7 c
Now multiplying equation(1 )by 3,we get
3 a+ 3 b=60 ----------------------------------(3)
and Multiplying equation( 2) by 4,we get
4 b + 4 c=120 -----------------------------------(4)
Adding expression (3) and (4),we get i.e left hand side of 3 to left hand side of 4 and right hand side of 3 to right hand side of 4.
3 a+ 3 b+ 4 b+ 4 c=60+120
Adding like terms, we get
3 a+ 7 b+ 4 c =180, Which is the required solution.
Answer:
the new values could be 3 and one half and 5 and one half.
Step-by-step explanation:
This is correct because they are asking for a new one. Also, one that has 3 as a difference in between.
PLEASE LOOK AT ATTACTHMENT!!!
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Answer:
add a point 4 units to the left
Step-by-step explanation:
What equation please tell me
