WILL MARK BRAINLIEST Which expression can be used to find the value
1 answer:
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Answer:
x = -7.33 OR x =
y = 13
Step-by-step explanation:
<u>→You can use the substitution method. First, make y by itself in (-2 + 2y = 24):</u>
-2 + 2y = 24
2y = 26
y = 13
<u>→Then, plug in 13 for y into the other equation:</u>
3x + 2y = 4
3x + 2(13) = 4
3x + 26 = 4
3x = -22
x = -7.33 OR x =
Answer:
x = x = 9 ± or x ≈ 12.61 or x ≈ 5.39
Step-by-step explanation:
x² - 18x + 68 Solve by completing the square.
x² - 18x = - 68
Now complete the square and add that number to both sides of the equation.
1/2 (of the coefficient of the x term)² = (1/2 · -18)² = 81 .
x² - 18x + 81 = -68 + 81
(x - 9) (x - 9) = 13 Now find the square root of both sides
=
Solve
x - 9 = ± Solve for x
x = 9 ±
x = 9 + or x = 9 -
x ≈ 12.61 or x ≈ x 5.39