book Maths Puzzle Numerical Ability

How do you find the line parallel to another line ex. x + 2y = 7

Read Solution (Total 0)

book Other Question

if they draw a parabola and ask to find its quadratic equation. how do u do that? explain: -14-8+10-(-6)= ??

I get = 10 and 38

help I have trouble only with the substraction. I can do the addition, division and multiplication of positive and negative numbers. I just do not get the substraction of - / + nos.

Thanks