3 years ago

Which ordered pair is a solution of the equation? - 4x + 7 = 2y - 3

Mathematics

2 answers:

Nikolay [14]3 years ago

8 0

Answer:

(2,1) and (5,-5)

Step-by-step explanation:

I just did this question

nydimaria [60]3 years ago

6 0

Answer:

(0,5), (1,3), (2,1)

Step-by-step explanation:

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3 years ago

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pickupchik [31]

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3 years ago

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Mars2501 [29]

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3 0

3 years ago

Solve it by substitution method:- 5x - 6y=-9 and 3x + 4y= 25

user100 [1]

$\left\{\begin{array}{ccc}-5x-6y=-9&/\cdot2\\3x+4y=25&/\cdot3\end{array}\right\\+\left\{\begin{array}{ccc}-10x-12y=-18\\9x+12y=75\end{array}\right\\------------\\.\ \ \ \ \ \ \ -x=57\\.\ \ \ \ \ \ \ \ \ x=-57\\\\3\cdot(-57)+4y=25\\-171+4y=25\\4y=25+171\\4y=196\ \ \ \ /:4\\y=49\\\\Solution:x=-57;\ y=49.$

8 0

3 years ago