Mathematics

Mathematics, 29.06.2019 02:30, Kazya4

Pls someone solve each system by substitution. 7) . -4x+y=6 -5x-y=21

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Mathematics, 22.07.2019 13:00, austintules2005

1. solve the system using substitution (1 point) x + y = 8 y = 3x (a). (4, 12) (b). (2, 6) (c). (1/2, 3/2) (d). (-4, -12) 2. solve the system using substitution (1 point) 2x + 2y = 38 y = x + 3 (a). (8, 11) (b). (4, 7) (c). (35/4, 47/4) (d). (-4, -7) 3. solve the system using substitution (1 point) y = 8 - x 7 = 2 - y (a). (5, 13) (b). (13, -5) (c). (3, 5) (d). (21, -13) 4. solve the system using substitution (1 point) 3x + 2y = 23 1/2x - 4 = y (a). (9, -2) (b). (27/4, -5/8) (c). (31/4, -1/8) (d). (3/2, -13/4) 5. solve the system using substitution (1 point) y - 2x = 3 3x - 2y = 5 (a). (-1/2, 2) (b). (2, 7) (c). (-8, -13) (d). (-11, -19) unit 7 lesson 2, solving systems using substitution. if you completed this algebra lesson yet give me the rest of the : )

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Mathematics, 30.07.2019 18:40, ceasar6071

1) how many solutions does this system have? use substitution. y=2x+1 and 4x-2y=6 2) true or false. you cannot use substitution to solve a system that does not have a variable with coefficient of 1 and -1. 3) what is the solution of the system? use substitution. 7x-2y=1 and 2y=x-1

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Mathematics, 01.08.2019 18:50, dinero0424

1.) for the following system, use the second equation to make a substitution for x in the first equation. 3x + 2y = 7 x - y + 3 = 0 what is the resulting equation? a. 3x - y - 3 + 2y = 7 b. 3(y - 3) + 2y = 7 c. 3y - 3 + 2y = 7 2.) which of the following would not be the result of a substitution in the following system? 2x + y = 7 y - x = 1 a. 7 - 2x - x = 1 b. 2x + x + 1 = 7 c. 2(y + 1) + y = 7 3.)solve the following system of equations by the substitution method. 8x = 2y + 5 3x = y + 7 what is the solution set? a. {(-41/2, -9/2)} b. {(-9/2, -41/2)} c. ∅

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Mathematics, 10.10.2019 18:00, amazinga

Solve the system of equations using substitution. show work so i can understand how to solve the problem. i have the answers i just can not figure out how to do the substitution. 2x=10-y 3x-y=5

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