Question

Cine ma ajuta cu ex matematica: (950×a-949×a)×5=10 , (9a-8a)÷9=9 si (25a-24a)×3=102

Answer 1

(950a-949a)x5=10
ax5=10
a=10:5=2
a:9=9
a=9x9=81
ax3=102
a=102:3=34

Answer 2

$a)(950a-949a)*5=10\\ a*5=10\\ a=10:5\\\boxed {a=2}\\\\ b)(9a-8a):9=9\\ a:9=9\\ a=9*9\\ \boxed{a=81}\\\\ c)(25a-24a)*3=102\\ a*3=102\\ a=102:3\\ \boxed{a=34}.$