What is the first step in solving the equation 3.5 n + 6.4 = 42.5?

Use long division to indentify (12xto the second power+15x-8)divided by 3x

The slope of the line whose equation is y - 3 = 0 is 0 3 no slope

Ana’s dachshund weighed 5 5/8 pounds when it was born . by age 4 the dog weighed 6 times as much. fill each box with a number or symbols from the list to show how to find the weight of ana’s dog at age 4 . not all numbers and symbols my be used