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Sagot :
The value of x and y is -0.0434 and -4.5652.
What is equation?
equation, statement of equality between two expressions consisting of variables and/or numbers.
given:
x - 4.5y=20.5
x + 4.7y= -21.5
Solving above two equation we have:
20.5+4.5y=-21.5-4.7y
42= -9.2y
y= -42/9.2
y= -4.5652
x=-0.0434
Hence, the value of x and y is -0.0434 and -4.5652.
Learn more about equation here:
https://brainly.com/question/2263981
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