d) 10
Step-by-step explanation:
x ÷ + 8 = 13
substitute 10 for x:
⇒ 10 ÷ + 8 = 13
solve:
1) divide 10 by
⇒ 10 ÷ = 5
2) add 8 to 5
⇒ 8 + 5 = 13
55/i dont know i do it for the points
step-by-step explanation: