Set up a system of equations using the sum and difference equation.
x + y = 180 <em>definition of supplementary angles</em>
+ <u>x - y = 35</u>
2x = 215
x = 107.5
x + y = 180 ⇒ 107.5 + y = 180 ⇒ y = 72.5
Answer: 107.5 and 72.5
The answer is five divide by twenty eight
The solution to the given equation is x = ±7. The correct option is d. x = ±7
<h3>Solving quadratic equations </h3>
From the question, we are to determine the solution to the given equation
The given equation is
x²-49 = 0
NOTE: I assumed the variable is x
Solving the equation
x²-49 = 0
Writing in the form ax²= c
x² = 49
∴ x = ±√49
x = ±7
Hence, the solution to the given equation is x = ±7
Learn more on Solving quadratic equations here: brainly.com/question/24334139
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Answer:
x ≤ 4
Step-by-step explanation:
Subtract 7 on both sides:
x + 7 ≤ 11
-7 -7
x ≤ 4
