University:
Missouri State University
Course:
MTH 103 | Intermediate Algebra
Academic year:

2020
Views:

194

Pages:

2
Author:

DrieniHooloki9

Name: *Key Algebra 18 Section 7.3 continued Solve each system using the Elimination Method. 1) 2x - y = 7 - 2x + y = 8 2) - 4x - y = - 1 12x + 3y = 3 0=15 No Solution - 13x - 3y = - 3 10x + 3y = 3 o = 0 SHI 3) 3x - 8y = 11 * 3 6x - 16 / j = 23 - 6x + 16y = - 5 - 6x + 1varphi_{j} = - 5 0=17 4) - 2x + y = 13 x - 4y =-31* hat beta 1 -ax y = 13 3x - 8' * y = - 62 - 7y = - 49 y = 7 e- No Solution 2x + 7 = 13 - 2x = 6 x = - 3 (- 3, 7) 5) - 5x + 7y = 10 * 3 - 15x + 21y = 30 15x - 21y = 22 15x - 21y = 22 6 = 6a 61x x - y = 3 - beta 2y - 3y = 6 - 2x + 2y = - 6 - 3x + 3 = - 6 0 = 0 IMS No Solution 7) 2x - 5y = 10 * 3 4x - 15y = 30 - 3x + 4y =-15.y- Box x+8y=-30 8) 3x + 2y = 8 2y = 12 - 5x - 7y = 0 y = 0 3x + 2y = 8 5x + 2y = 12 - 3x - 26 = - 8 5x + 2y = 12 x=4 x = 2 3(2) + 3y = 8 2y - 2 (1.8/3105) (f'e) 2x + 0 = 10 x = 5 (5,0) 3(1/7) + 7y = 8 1, 5 + 2y = 3 2x_{f} = 6.5 y = 3.35 9) 3x = - 6y + 12 3y - x = 16 3x + 6y = 12 x + 3y = 16 8x + 6y = 12 - 3x + 9y = 48 15y = 60 y = 4 10) 2a = 4b + 8 3b = 5d - 13 2a - 4b = 8 -S - 5a + 3b = - 13 3x=^ - 6 (4) + 12 3x = - 24 + 12 3x = - 12 x = - 4 (- 4, 4) 10/- 2 * cb = 40 y 0a + 6b = - x_{0} -146-14 b = - 1 2a = 4(- 1) + 8 2a = 4 a = 2 ( partial,-1)