Answer:
Y + (Y + 4) your answer.
Step-by-step explanation:
Y is representing Diego's age and his brother is four years older than him so that is how you would get (Y + 4). It then stated the sum of both ages so that is how I got the equation.
30; 4(7) + (2)=30
4.2 x 10^3 is the correct answer
Hi there!
9x - 1 = -11
Add 1 to both sides:
9x -1 + 1 = -11 + 1
9x = -10
Divide both sides by 9:
9x/9 = -10/9
x = -10/9
30
Answer:1000