Réponse :
Explications étape par étape
A = 6x2:4-0,1x(46-6x7) = (6x2/4)-(1/10)x(46-42)
A = (3x2/2)-(1/10)x4
A = (6/2) -(4/10)
A = (5*6 -4)/10
A = (30-4)/10
A = 26/10
A = 13/5
A= 2.6
B = [7x8+3x(2,4+3,6)]-(4,8+2,2) = [56+3*(24/10)+36/10)]-(48/10+22/10)
B = (56 + 72/10 +36/10) + (- 48 -22)/10
B = (560+ 72 +36 -48 -22)/10
B= 598/10
B = 59.8
13-5 +17x3 8 + 51
C = ----------------------- = ----------------- = 59/2 = 29.5
1,16+0,84 2
D = 28-(8-3x2)-4+5x3 = 8-(8-6)-4+15
D = 8-8 +6 +11
D = 17
j'espère avoir aidé
