Question

afla termenul necunoscut ex 10

Answer 1

a)243x17+a=6173
4131+a=6173
a=6173-4131
a=2042
b)a+258x17=5000
a+4386=5000
a= 5000-4386
a=614
c)475x37-a=12348
17575-a=12348
a=17575-12348
a=5227
d)a-275x24=13000
a-6600=13000
a=13000+6600
a=18600
e)50x490+a=30000
24500+a=30000
a=30000-24500
a=5500
f)a-16x508=439
a-8128=4392
a=4392+8128
a=12520