exam Maths Puzzle Numerical Ability

using matrices 2x-y-z=-3
x-2y+3z=6
x+y+z=6
thank you

Read Solution (Total 0)

exam Other Question

</a>

I believe the answer is y = 4x

am i right? The perimeter of a rectangle is 68cm. The length is 4cm more than the width. Fine the dimention of the rectangle.