exam
Maths Puzzle
Numerical Ability
solve the system by addition
2x - 4y = 7
4x + 2y = -1
Read Solution (Total 0)
exam Other Question
(1, -4, 3) is the solution to the system, true or false?
x+y+z=0
x-y+5z=20
5x+y+z=4
simplify
square root of 20 times the square root of 5