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Maths Puzzle
Numerical Ability
i have a problem... 2/7=x/-42
I know you cross multiply
7x=-84
x=-84-7
x=-91
Im i right?
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book Other Question
perform the division
2mto the 3rd+6m to the 2nd - 2m+24 divided by 2m to th 2nd-2m+6
log(7-2x)=log(x+5)