Abraham did the following for x=-4, 7x=7-4=-3

Solve the following equations. x/2-1/7=3/4

Evalute the following integrals int (7x -4)/((x -1)^(2)(x+2)) dx

Find the equation of the radical axis of the following circles x^(2)+y^(2)-3x-4y+5=0,3(x^(2)+y^(2))-7x+8y-11=0

Workout the following divisions : 36 (x+4) (x^2+ 7x + 10) ÷ 9 (x+4).

Find the roots of the following equations : 1/(x + 4) - 1/(x -7) = 11/30 , x ne -4,7

Solve the following equations : 15 (x- 1)+4 (x + 3) = 2 (7 + x)

Find the equation of the radical axis of the following circles. x^2 + y^2 - 3x - 4y + 5 = 0. 3(x^2 + y^2) - 7x + 8y - 11 = 0