exam Maths Puzzle Numerical Ability

Use Cramer Rule.

x-3y+z=-2
x+2y=8
2x-y=1

Read Solution (Total 0)

exam Other Question

I am having trouble with this one. Any help is appreciated.

Simplify

Square root of 3x/2

Thanks Hello-Today on test, I was unable to prove that x=2. Given: 1/2x + 1 = 2x -2.
I know x=2 but kept coming up with x=1 when I did all of the steps. I must be doing something wrong. Thanks.