Q1: For each part of this question, write down an equation to represent the problem, and compare the equation you have written with the equations written by the other members of your group. Then solve the equation that has been written in the most sensible way.
(a) Alberto thinks of a number. He multiplies it by 5 then adds 1 to the result. The answer is 26. What number did Alberto think of?
(b) Bim thinks of a number. He multiplies it by 5 then subtracts 4 from the result. The answer is 6. What number did Bim think of?
(c) Caroline thinks of a number. She divides it by 10 then adds 3 to the result. The answer is 11. What number did Caroline think of?
(d) Hiromni thinks of a number. She subtracts 5 then multiplies the result by 3.The answer is the same as subtracting 6 from the number then multiplying the result by 6. What number did Hiromni think of?
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Answer:
a). 5
b) 2
c)80
d) 3(x-5)=6(x-6)
3x-15=6x-36
36-15=3x
7=x
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