Question

rezolvați ecuatiile apoi comentați
a) 4 z-6=194
b) 35+5 a=95
c) 8 b+26=58
d)3 (2+x)=9
e)(15-x):3=5
f)42:(y+4)=6

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Answer 1

a)
4z-6=194
4z=194+6
4z=200
z=200:4
z=50

b)
35+5a=95
5a=95-35
5a=60
a=60:5
a=12

c)
8b+26=58
8b=58-26
8b=32
b=32:8
b=4

d)
3(2+x)=9
2+x=9:3
2+x=3
x=3-2
x=1

e)
(15-x):3=5
15-x=5×3
15-x=15
x=15-15
x=0

f)
42:(y+4)=6
y+4=42:6
y+4=7
y=7-4
y=3