book Maths Puzzle Numerical Ability

x-1+x-2=1-2x
x+3+x-3=3-x this is a fraction,line goes acrossn all 3

Read Solution (Total 0)

book Other Question

x^2+x+1=0
Can u please solve it and show me how to check it? thank you very much.
how i found the perimeter of an isosceles triangle?