Can someone help me solve these questions i'm finding it really difficult.....
SIMULTANEOUS EQUATION
2x+y=7
3x-y=3
SOLVE ALGEBRAICALLY
(a) y= x^2 + 3x -8
y= x - 5
(b) Write down the formula to find the roots of the equation
(c) Use the formula to find the roots of: 3x^2-9x-16=0