Pouvezvous m'aider à résoudre ses 4 équations svp? Merci a. 1+(x+13)=5x                     b. 3-(y+2)=y+1 c.  15+(x+11)=2-2x                d.  8(a-2)= -1+(5a-

a) 1+×+13=5× => 4× = 14 => × = 7/2 b) 3 - y-2 = y + 1 => 2y = 0 => y = 0 c) 5 + × + 11 = 2 - 2× => 3× = -14 => × = -14/3 d) 8a - 16 = -1 + 5a - 8 => 3a = 16 - 9 => 3a = 7 => a = 7/3