exam
Maths Puzzle
Numerical Ability
y= 5-4x
3x-2y = 14
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exam Other Question
An investment of $1500 paid interest of $45 during a certain period.How much interest would an investment of $2000 invested at the same rate for the same length of time pay?
#1) (2x-3) (4x+5)=0
#2) X to the second power -3x=0
How do I solve this?