Grade 9 Essential Skills Practice 1. Simplify each of the following: a) -2(5x 1) + 3(2x 3) b) 3x(2x 5) + x(-4x + 1) – – – c) 4(x 3) 3(8x 1) d) 5 3(x 6) + 2(x 5) – – – – – – 2. Isolate y in each of the following: a) 4y + 12 = 8x b) 3x 5y = 15 c) 2y x = 10 – – 3. Isolate x in each of the following: d) 3x y = 9 e) 2y 4x = -16 f) 3x + 12y 15 = 0 – – – 4. Solve for x in each of the following: a) 5x 6 = 2x + 12 b) -2x + 3 = 4x + 9 c) 3x + 1 = 11 2x – – d) 5x + 8 + 2x = 57 e) 9x 4 = 18 7x + 5x – –
Grade 9 Essential Skills Practice 1. Simplify each of the following: a) -2(5x – 1) + 3(2x – 3) b) 3x(2x – 5) + x(-4x + 1) c) 4(x – 3) – 3(8x – 1) d) 5 – 3(x – 6) + 2(x – 5) 2. Isolate y in each of the following: a) 4y + 12 = 8x b) 3x – 5y = 15 c) 2y – x = 10 3. Isolate x in each of the following: d) 3x – y = 9 e) 2y – 4x = -16 f) 3x + 12y – 15 = 0 4. Solve for x in each of the following: a) 5x – 6 = 2x + 12 b) -2x + 3 = 4x + 9 c) 3x + 1 = 11 – 2x d) 5x + 8 + 2x = 57 e) 9x – 4 = 18 – 7x + 5x
2d_essential_skills_practice_2018.docx