exam
Maths Puzzle
Numerical Ability
x^2-4-0 , 3x+x^2=0, x^2-10x+2=0 , 4x^2-16x=-16
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exam Other Question
what is 5p/7-18=-43:
thank you
Solve each of the following systems by substitution.
16. 5x -2y = -5
y-5x = 3
20. 8x -4y = 16
y= 2x -4
28.) 4x -12y = 5
-x + 3y= -1