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3 years ago

Will give brainliest how to solve 3x-4y = 5x+7y

Mathematics

1 answer:

topjm [15]3 years ago

6 0

Answer:

(5x + -4y)(3x + 7y) = 0

Multiply (5x + -4y) * (3x + 7y)

(5x * (3x + 7y) + -4y * (3x + 7y)) = 0

((3x * 5x + 7y * 5x) + -4y * (3x + 7y)) = 0

Reorder the terms:

((35xy + 15x2) + -4y * (3x + 7y)) = 0

(35xy + 15x2 + (3x * -4y + 7y * -4y)) = 0

(35xy + 15x2 + (-12xy + -28y2)) = 0

Reorder the terms:

(35xy + -12xy + 15x2 + -28y2) = 0

Combine like terms: 35xy + -12xy = 23xy

(23xy + 15x2 + -28y2) = 0

Solving

23xy + 15x2 + -28y2 = 0

Solving for variable 'x'.

Factor a trinomial.

(5x + -4y)(3x + 7y) = 0

Step-by-step explanation:

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Step-by-step explanation:

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