The answer or number that you are looking for is -6.4. You can get this by dividing 3 by 5 which is equal to 0.6. Next you would subtract 7 to reverse the act of having added it. This will give you -6.4 which is what you are looking for.
Hi there! :) Let the number be x. Thus, the sum of a number and 7 would be x + 7. We can now set up the equation as follows: 5(x + 7) = 3; 5x + 35 = 3; x = -32/5 --- Hope this helps! ==jding713==
