Ch 3 Test Review 2 2013- key - Pre Algebra-CH3 Name Date Per Use the Distributive Property to simplify the following expressions 2 points each all or

# Ch 3 Test Review 2 2013- key - Pre Algebra-CH3 Name Date...

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Pre Algebra -CH3 Name ________________________ Date ________ Per _______ Use the Distributive Property to simplify the following expressions: 2 points each, all or nothing 1.4(32)x___-12x + 8____ 2.437x____-12x - 28______ 3.29 2x___4x + 18________ 4.82xy____-8x 16y________ 5. 77y ____7y + 49_______ 6. 63x____6x 18 ________ 7. 84y___4y 8 ________ 8.24x_____-2x + 8 _______ 9.9(42)x____36x + 18______ 10.5()ab_____ -5a + 5b_______ Simplify each expression by gathering like terms. Also use the distributive property if necessary: 2 points each, all or nothing (you may get some credit for distributing correctly on #17-20) 11. 1197xx____20x 7 _______ 12. 124yy_____11y 4 ______ 13. y y y ______ y ____________ 14. x x x   _____ -3x ________ 15. 15 5 x x ____ 16x + 5 _____ 16. 8 5 12 x x ___ -13x + 12 _______ 17. 7(3 5) 9 x x ____ -12x + 35 ________ 18. 7 5 4 8 y y y ___ -6y + 20 ________ 19. 4 (5 7) 2 x x _____ -3x + -3 _______ 20. 4( 1) 4 1 x x ____ -3 _________ Solve the following equations. Remember to gather like terms before isolating the variable. 3 pts each, some partial credit may be given for proper steps shown with a small computational error (no integer errors!) 21. 6 14 38 x   ____ x = -4 ________ 22 . 3 5 10 x   ___ x = 5 _______ 23. 13 2 7 x   _____ x = 10 _________ 24. 12 8 2 x   ____ x = 40 __________ 25. 12