exam
Maths Puzzle
Numerical Ability
Solve this problem using the substitution method
4x - y = -3
y - 3 = 4x
Read Solution (Total 0)
exam Other Question
1a)9x^2 - 24 = 0
solve by root extraction
1b)2z^2+2x = 4
solve by quadratic formula
1c)(4x-2)^2 = 100 solve by root extraction
solve by root extraction
An airplane flew for 4 hours with a 20-km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
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