Răspuns :
a.(x+2 8/15)×3/2=5 1/4
(x+38/15)×3/2=21/4
x+38/15=21/4 ÷3/2
x+38/15=21/4×2/3
x+38/15=42/12=21/6
x=21/6-38/15
x=105/30-76/30
x=29/30
b.109/50÷y=109/1000
y=109/50÷109/1000
y=109/50×1000/109
y=109000/5450
y=20
Sper că te-am ajutat!
a.(x+2 8/15)×3/2=5 1/4
(x+38/15)×3/2=21/4
x+38/15=21/4 ÷3/2
x+38/15=21/4×2/3
x+38/15=42/12=21/6
x=21/6-38/15
x=105/30-76/30
x=29/30
b.109/50÷y=109/1000
y=109/50÷109/1000
y=109/50×1000/109
y=109000/5450
y=20
Sper că te-am ajutat!