Math - complete the following problems from class: 4.(a) 3(x + 5) = 36(b) 4(p - 6) = 36(c) 5(y + 2) = 25(d) 10(a + 8) = 30 5. (a) -2(a + 4) = 18(b) -3(r - 5) = -27(c) 7(-y + 2) = 28(d) -6 (c - 9) = -42 6. Marc has some hockey cards.  His friend gives him 3 more cards.  Marc says that if he doubles the number of cards he has, he will have 20 cards.  How many cards did Marc start with? a) Choose a variable to represent the number of cards Marc started with.  Write an equation to model this problem. b) Solve the problem using the distributive property. c) Verify the solution.  Explain your thinking in words. 8. The perimeter of a rectangle is 26 cm.  The Rectangle has length 8 cm.  What is the width of the rectangle? a) Write an equation that can be solved using the distributive property. Solve and verify.