Question

imi trebuie sa rezolv ecuatiile si sa comentez a) 4z-6=194 b)35+5a=95 c)8b+26=58 d)3(2+x)=9 e)(15-x):3=5 f)42:(y+4)=6

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=12

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

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

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

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