Raul used the steps shown below to solve the equation. in which step did raul make a mistake? 5x-3(2x+7)=2x+9 step 1: 5x-6x-21=2x+9 step 2: -11x-21=2x+9 step 3: -12x=30 step 4: x=-30/12 a. step 1 b. step 2 c. step 3 d. step 4

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Y=21.95x+10 y=22.45x solve by substitution

Roy has 4 1/2 pizzas for the soccer team to split after the game. if each member is going to get 1/2 of a pizza, how many players are on the soccer team