One number- we will call it x It is eight 'more' so we'll add another- a different variable, we will call it y It is eight more than 'twice' another so we will multiply 2 to the y variable Our equation will then be: x=2y+8 Since x is 8 'more' than twice the other number Now the sum of the two numbers are decreased (subtracted) by ten and the difference is thirteen. x+y-10=13 Now add ten to both sides x+y-10=13 +10 +10 x+y=23 Now we know that the sum of the two numbers is 13. Think of any reasonable number for y and we will continue from there. For sake of saving space, lets use 5. (Keep in mind we must have both numbers add to equal 23.) x=2(5)+8 x=10+8 x=18 y=5 18+5=23 That's the values :) Hope it helped
