Question

Află valoarea necunoscutelor

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Answer 1

Răspuns:

a)a=1

b)b=5

c)c=350

d)d=50

e)e=44

f)f=2345

Explicație pas cu pas:

a) 8*a=8 a=8/8=1

b)2*b=10 b=10/2=5

c)c:(671-666)=70 c:5=70 c=70*5=350

d) 1000-2d-100=800

1000-100-800=2d

100=2d d=100/2=50

e) e-28+116=132 e=132+28-116 e=44

f) f:7+25=900-(300-240)*9

f:7+25=900-60*9

f:7+25=900-540

f:7+25=360

f:7=360-25

f:7=335

f=335*7=2345