Let x be the number of cans.
Let A be the number of cans Amelia has.
Let B be the number of cans Elliot has.
GIVEN:
A=5x-13
B=x
n(total number of cans) = 257
Solution:
a) A+B=257
(5x-13)+x=257
combine like terms.
6x=257+13
6x=270
x=270/6
x=45... 45 is the number of cans Elliot has
b) x = 45
A= 5x-13
=5(45)-13
=225-13
=212.. the number of cans Amelia has.
A+B=257
212+45=257
257=257