exam
Maths Puzzle
Numerical Ability
Claire bought three bars of soap and five sponges for $2.31. Steve bought five bars of soap and three sponges for $3.05. Find the cost of each item.
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exam Other Question
8x+1+4x=3
my answer:
8x+4x=1+3
12x = 4 *(12x over 4/4 over 4)
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4 4 x=3 (answer)
please explain how i use y=2x+1 on a garft,to fined the variable y or x.
thank you robin