exam
Maths Puzzle
Numerical Ability
Could someone be so kind in helping me with this problem?
I need to solve the following systems by substitution:
4x - 12y = 5
-x + 3y = -1
Thanks so much,
Ashley
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exam Other Question
If seven coins are tossed, in how many ways can they fall?
log2(x+3)+log2(x-3)=4