Question

rezolvati ecuatiile pls rapiiid

Answer 1

a) x + 1 = 4
2(x+1) / 2 = 8/2
x + 1 - 1 = 4 - 1
x = 3

b) 3x - 6 = 2x + 5
3x = 2x + 11
3x - 6 + 6 = 2x + 5 + 6
3x - 2x = 2x - 2x + 11
3x - 6 = 2x + 5
x = 11

c) 5•2x - 20 = 3•4x + 6
10x - 20 = 12x + 6
10x = 12x + 26
10x - 20 + 20 = 12x + 6 + 20
x = 13/-1
-2x = 26
10x - 12x = 12x - 12x + 26
x = -13

d) -2x - 2 + x = 2x
-1x - 2 = 2x
-x - 2 = 2x
-x = 2x + 2
-3x = 2
x = -2/3

e) 2t + 3•2t - 3 = t+4t-8
6t + 2t - 3 = 5t - 8
8t - 3 = 5t - 8
8t = 5t - 5
8t - 3 + 3 = 5t - 8 + 3
2t + 3(2t - 1) = t + 4(t - 2)
3t = -5
8t - 5t = 5t - 5t - 5
8t - 3 = 5t - 8
t = -5/3.

Answer 2

sper ca te.am ajutat
coronita??