ECUACIONES

7 + 2x = 13
15 + 7x = 1
4x – 3 = 2x
5x – 3 = 1 – 2x
(x/2)+5 = (x/3)+6
5x – 20 = x+8
(x+6)/2 = 2x – 21
(2x–3)/(4x–3) = 1
2/(3–x) + 1/(2+x) = 0
(x+10)/(3x+5) = 2
(11x+1)/(6x–2) = 2
(x+2)(x+3) = (x+1)(x+7)