Question

Alvin is 5 years older than elga. the sum of their age is 85. what is elga age

Answer 1

Answer:

e = 40

a=45

Step-by-step explanation:

a + e = 85

a = e+5

e + 5 + e = 85

2e = 80

e = 40

a=45

Answer 2

Answer:

40 years old.

Step-by-step explanation:

We can let Elga's age equal $x$. Alvin's age can be equal to $y$. We can make several equations from the information we know. We know that Elga's age plus five equal's Alvin's age.

$x+5=y$

We also know that the sum of their ages is 85.

$x+y=85$

We can substitute $x+5$ for $y$ in the second equation since $x+5=y$, so we have the following equation:

$x+(x+5)=85$

We can combine like terms to get

$2x+5=85$

Subtracting 5 from both sides results in

$2x=80$

After that, we can divide both sides by 2 to get

$x=40$

Thus, Elga is 40 years old.