Question

determine os valores da icognitas: a) 5x+6= 3x+46 b) x/5 + 4=36 c) 5x/3 +8=38 d)13x +26=12x-41

Answer 1

a)
5x + 6 = 3x + 46
5x - 3x = 46 - 6
2x = 40
x = 20

b)
x/5 + 4 = 36
x/5 = 40
x = 40 • 5
x = 200

c)
5x/3 + 8 = 38
5x/3 = 30
5x = 30 • 3
5x = 90
x = 18

d)
13x + 26 = 12x - 41
13x - 12x = -41 - 26
x = -67