exam Maths Puzzle Numerical Ability

Can the system
4x + 5y = -4
12x - 9y = -4

be solved more easily by using the substitution method or the addition method? And why?

Read Solution (Total 0)

exam Other Question

Graph y=(x-5)(2x+7)(3-x)^2(x-7)(x+2)^2, and label all intercepts

ty
1/2d +3/8 = -2d

5/2t-t=3+3/2t

1/3(y-7)=2y+6

1/2(5x+8)=4x-5