Pour le a) je crois que c'est sa :
a) 2 ( x-5 ) - 3 ( - x + 5 )
2x - 10 - (-3x ) -15
2x + 3x - 25
5x - 25
a) 2(x_5) _3(_x+5) = 2x_10+3x_15
= 5x_25
b) _3(a+3)_5(3_a)+2 = _3a_9_15+5a+2
= 8a_4
c) m_(5-2m)-3m+4 = m-5+2m-3m+4
= -2m-1
d) 2(p-3)+5(p-7) = 0
2p-6+5p-35 =0
7p-41=0
p = 41/7
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Pour le a) je crois que c'est sa :
a) 2 ( x-5 ) - 3 ( - x + 5 )
2x - 10 - (-3x ) -15
2x + 3x - 25
5x - 25
a) 2(x_5) _3(_x+5) = 2x_10+3x_15
= 5x_25
b) _3(a+3)_5(3_a)+2 = _3a_9_15+5a+2
= 8a_4
c) m_(5-2m)-3m+4 = m-5+2m-3m+4
= -2m-1
d) 2(p-3)+5(p-7) = 0
2p-6+5p-35 =0
7p-41=0
p = 41/7