Question

Como que faz (x+2)/6+(x+1)/4=6

Answer 1

(x + 2) + (x + 1) = 6
    6            4

mmc (6,4) = 12

2(x + 2) + 3.(x + 1) = 72
         12                   12

2x + 4 + 3x + 3 = 72
2x + 3x + 4 + 3 = 72
5x + 7 = 72
5x = 72 - 7
5x = 65
X = 65/5
x = 13
========================================
mmc (6,4) = 12

6,4: 2
3,2: 2
3,1: 3
1,1     = 2.2.3 = 4.3 = 12