#2
Ecuaciones de primer grado (ejemplos resueltos) -17x +97 = -26x +160 -17x +26x = 160 -97 9x = 63 x = 63/9 x = 7 -5x -78 = -10x -118 -5x +10x = -118 +78 5x = -30 x = -30/5 x = -6 15x +58 = 8x +30 15x -8x = 30 -58 7x = -28 x = -28/7 x = -4 -2x -14 = -x -9 -2x +x = -9 +14 -x = 5 x = 5/-1 x = -5 -2x -12 = -3x -21 -2x +3x = -21 +12 x = -9 -2x +17 = -x +11 -2x +x = 11 -17 -x = -6 x = -6/-1 x = 6 -13x +102 = -8x +67 -13x +8x = 67 -102 -5x = -35 x = -35/-5 x = 7 x -12 = 2x -18 x -2x = -18 +12 -x = -6 x = -6/-1 x = 6 3x -12 = 2x -8 3x -2x = -8 +12 x = 4 -7x -42 = -11x -66 -7x +11x = -66 +42 4x = -24 x =-24/4 x = -6