Ta có:
x*62+x*48=4200.
x*(62+48)=4200.
x*110=4200.
x*11=420.
x=420/11.
Vậy x=420/11.
X x 62 +X x 48=4200
(62+48)x X =4200
110 x X =4200
X =4200:110
X =38,18
k nha
X x 62 + X x 48 = 4200
X x ( 62 + 48 ) = 4200
X x 110 = 4200
X = 4200 : 110
X = \(\frac{420}{11}\)
~ Chúc học tốt ~
Ai ngang qua xin để lại 1 L - I - K - E
X × 62 + X × 48 = 4200
X × ( 62 + 48 ) = 4200
X × 110 = 4200
X = 4200 ÷ 110
X = 420/11
X x 62 + X x 48 = 4200
X x ( 62 + 48 ) = 4200
X x 110 = 4200
X = 4200 : 110
X = \(\frac{420}{11}\)
~ Ủng hộ nhé ~
x.62+x.48=4200
x.(62+48)=4200
x.110=4200
x =4200:110
x =420/11