Réponse :
Explications étape par étape
Bjr,
(-7g+7)(8g-10)=10
-7g*8g = -56g
-7g* -10 = 70g
7*8g =56g
7*-10 = -70
=>
-56g +70g +56g -70 = 10
70g = 10+70 =80
g =80/70 = 8/7
☺
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Réponse :
Explications étape par étape
Bjr,
(-7g+7)(8g-10)=10
-7g*8g = -56g
-7g* -10 = 70g
7*8g =56g
7*-10 = -70
=>
-56g +70g +56g -70 = 10
70g = 10+70 =80
g =80/70 = 8/7
☺