Find the pair of numbers that solves the equation 5x-3y + 18 = 0
| June 9, 2021 | education
It is required to find such a pair of numbers, when substituted into a given expression, its value will be equal to 0.
Using the selection method, we find that these numbers are x = -6 and y = -4.
Substitute the numerical values of x and y into the given equation and make sure that the solution is correct:
5 * (-6) – 3 * (-4) + 18 = 0,
-30 + 12 + 18 = 0,
-18 + 18 = 0,
0 = 0, correct.
Hence, x = -6 and y = -4 are the solution to the given equation.
Answer: x = -6, y = -4.
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