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2 years ago

PLEASE HELP 100 POINTS AND BRAINLY

Mathematics

2 answers:

gregori [183]2 years ago

7 0

Answer:

Step-by-step explanation:

dem82 [27]2 years ago

6 0

Answer:

(2 , 2) is the solution

Step-by-step explanation:

7x - 4y = 6

-6x + 7y = 2

49x - 28y = 42

-24x + 28y = 8

25x = 50

therefore

7x - 4y = 6

7×2 - 4y = 6

14 - 4y = 6

14 - 6 = 4y

8 = 4y

8 ÷ 4 = 4y ÷ 4

therefore

x = 2

y = 2

hope this will helpful to you....

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Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

Option d. $4y+2x\leq -1$

Step-by-step explanation:

we know that

If a ordered pair is a solution of an inequality, then the ordered pair must be satisfy the inequality

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we have

$x=5, y=-3$

Substitute the value of x and the value of y in the inequality and then compare the results

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case b) $-2y$

we have

$x=5, y=-3$

Substitute the value of x and the value of y in the inequality and then compare the results

$-2(-3)$

$6$ -----> is not true

therefore

the ordered pair is not a solution

case c) $y-2x>5$

we have

$x=5, y=-3$

Substitute the value of x and the value of y in the inequality and then compare the results

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therefore

the ordered pair is not a solution

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we have

$x=5, y=-3$

Substitute the value of x and the value of y in the inequality and then compare the results

$4(-3)+2(5)\leq -1$

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