Remember PEMDAS. This is extremely important with these types of problems. Start by writing the equation down 5*27/7+8-9. Next multiply since there is no parentheses or exponent we Goto multiplication. 5*27=135. The equation will now look like 135/7+8-9. Next you want to simplify 135/7 to a mixed number (divide 135 by 7 and the whole number is the actually number and the rest is in the fraction, for example 135/7≈19. 19*7= 133.) 19 2/7+8-9 is the new equation. Now add the whole numbers together and you’ll get 27 2/7-9 then solve for the rest and will leave you with 18 2/7. X=18 2/7