exam
Maths Puzzle
Numerical Ability
I would like you to help me with this problem: 5x-9y=11, 3x+7y=19.
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exam Other Question
solve log(2x+3) = log(4x)+ 2, for x giving your answer correct to 3 significant figures
s^2-13s+42=0
a^2+2a-35=0
v^2-15v+54
v^2+12v+27=0