Tìm y
55:y+33=76
55: y = 76 -33
55 : y = 43
⇒y = \(\frac{55}{43}\)
\(55:y+33=76\)
⇔\(55:y=76-33\)
⇔\(55:y=43\)
⇔\(y=55:43\)
⇔\(y=\frac{55}{43}\)
55:y + 33 = 76
55:y = 76 - 33
55 : y = 43
y = 55 : 43
y = \(\frac{55}{43}\)
55:y + 33 = 76
55:y = 76 - 33
55 : y = 43
y = 55 : 43
y=\(\frac{55}{43}\)
chúc bạn học tốt!
55÷y+33=76
55÷y=76-33
55÷y=43
=>y=55/43