Rozwiąż równania a) 4t + 3 = 6t b) 4x + 12 = 3x + 21 c) 2y + 13 = 5y + 4 Pomocy!!!
Rozwiąż równania
a) 4t + 3 = 6t
b) 4x + 12 = 3x + 21
c) 2y + 13 = 5y + 4
Pomocy!!!
4t + 3 = 6t 4t - 6t = -3 -2t = -3 /:(-2) t = 3/2 = 1 1/2 4x + 12 = 3x + 21 4x - 3x = 21 - 12 x = 9 2y + 13 = 5y + 4 2y - 5y = 4 - 13 -3y = -9 /:(-3) y = 3
a) 4t-6t=-3 -2t=-3 t=1.5 b) 4x-3x=21-12 x=9 c) 2y-5y=4-13 -3y=-9 y=3