Question

calculeaza a si c
a×(b+5)=336
a×b=301
a=?

c×(3+d)=140
c×d=125
c=?
ajutor va rog! dau coroana!​

Answer 1

Răspuns:

Explicație pas cu pas:

a × ( b + 5 ) = 336

a × b + 5 × a = 336

301 + 5 × a = 336

5 × a = 336 - 301

5 × a = 35

a = 35 : 5

a = 7

_______________________

c × ( 3 + d ) = 140

3 × c + c × d = 140

3 × c + 125 = 140

3 × c = 140 - 125

3 × c = 15

c = 15 : 3

c = 5

Answer 2

a*b+a*5=336

301*5a=336/-301

5a=35/:5

a=7

3c+c*d=140

3c+125=140/-125

3c=15/:3

c=5