8x - 3 = 6x + 11 8x - 6x = 11 + 3 2x = 14 х = 14 : 2 x = 7 **************************************************** 8a + 14 = 4a - 26 8a - 4a = - 26 - 14 4a = - 40 а = - 40 : 10 a = - 10 ************************ 4x + 12 = 3x + 8 4x - 3x = 8 - 12 x = - 4 ************************* 10 + 5y = 3y - 8 5y - 3y = - 8 - 10 2y = - 18 у = (- 18) : 2 y = - 9 ********************** 10c - 5 = 8c + 1 10c - 8c = 1 + 5 2c = 6 с = 6 : 2 c = 3 ********************* 3x - 17 = 18 - 2x 3x + 2x = 18 + 17 5x = 35 х = 35 : 5 x = 7
8x-3=6x+11 8x-6x=11+3 2x=14 x=7 8a+14=4a-26 8a-4a=-26-14 4a=-40 a=-10 4x+12=3x+8 4x-3x=8-12 x=-4 10+5y=3y-8 5y-3y=-8-10 2y=-18 y=-9 10c-5=8c+1 10c-8c=1+5 2c=6 c=3 3x-17=18-2x 3x+2x=18+17 5x=35 x=7