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Solve the system of equations by the substitution method. 21)

Question : Solve the system of equations by the substitution method. 21) : 2147185

Solve the system of equations by the substitution method.

21)

(x- (7/3)y=(2/3)) (-(5/4)x + y=3)

A) (4, -2)

B) (-4, 2)

C) (4, 2)

D) (-4, -2)

Solve the system of equations by the elimination method.

22)

(x + 3y=-3) (4x + 2y=18)

A) (5, -2)

B) (6, -3)

C) (-6, -2)

D)

23)

(8x + 4y=64) (2x + 4y=76)

A) (4, -20)

B) (-2, 20)

C) (8, -20)

D)

24)

(x + 2y=-1) (2x + 2y=4)

A) (3, 5)

B) (-3, 5)

C) (5, -3)

D)

25)

(4x + y=-4) (2x + 4y=12)

A) (4, -2)

B) (0, 4)

C) (-2, 4)

D)

26)

(2x + 24y=-132) (10x + 4y=36)

A) (-4, 6)

B) (-6, 6)

C) (10, -10)

D) (6, -6)

27)

(3x + 5y=19) (-5x - 4y=-23)

A) (3, -2)

B) (3, 2)

C) (-3, -2)

D) (-3, 2)

28)

(5x + 8y=1) (8x + 3y=2)

A) ((13/49), -(2/49))

B) ((13/49), (2/49))

C) (- (2/49), (13/49))

D) ((2/49), -(13/49))

29)

(-x + 4y=-9) (-5x + 20y=2)

A) (0, - (9/4))

B) (9, 0)

C) {(x, y)|-x + 4y = -9}

D)

30)

(4x + y=7) (2y=14 - 8x)

A) ((7/4), 0)

B) (0, 7)

C) {(x, y)|4x + y = 7}

D)

Solution
5 (1 Ratings )

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Algebra 3 Months Ago 34 Views
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