Question

the weight of 4 boxes, A,B,CandD is 3580g,but the sum of the weight of boxes AandC is 1950g.find the weight of D if the weight of D is 130 more than the weight of B.​

Answer 1

Answer:

the weight of d and b =3580-1950

the weight of d and b= 1630

the weight of b=x

so d=x+130

x+x+130=1630

x+x=1630-130

2x=1500

x=750

x+130=750+130

x+130=980