Respuesta :
Answer:
Chris is 20 years old now
Step-by-step explanation:
Start by making Chris X and Anna X+4 in the equation. Because in 2 years they will be 40, you must add 2 to each person to set the equation equal to 40. Your equation should be (x+2)+(x+6)=40. Combine like terms to get 2x+8=40 and solve for x to get 16. This means Anna is 16 and Chris is 20
