exam
Maths Puzzle
Numerical Ability
I don't know how to solve this system. I know I should get 3 answers.
x+3y-z=-1
3x+2y+z=4
2x+5y+3z=-1
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exam Other Question
how i can graph 5x+2y+6=0
i rewrite the equation to y=-5/2x-3
the y intercpet is -3
the slope is-5/2
the x intersept is -6/5
7x^2 -175