exam
Maths Puzzle
Numerical Ability
Please solve for x:
3^(2x)-10*3^x+9=0
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exam Other Question
What multiplier should be used for each of the following equations to eliminate one unknown by subtraction?
3x-y = 7 2x+7y = 42
Construct the equation of a line that goes through the origin and is perpendicular to the given equation.
(a)y = 5
x = ?
(b)x = -7
y = ?