2x-3 = 9-4x
2x+4x = 9+3
6x = 12
x=2
Answer:
it looks good to me
Step-by-step explanation:
But i have a feeling that 8 might not be in the right place but im not sure
Other as the answer would be R<14
49 - 2/3 <em>x</em> = 32 - 1/6 <em>x</em>
Move the constant terms to one side and the terms containing <em>x</em> to the other:
49 - 32 = 2/3 <em>x</em> - 1/6 <em>x</em>
Simplify the left side, and pull out the common factor of <em>x</em> on the right side:
17 = (2/3 - 1/6) <em>x</em>
Write the fractions in terms of a common denominator. In this case, you would take
2/3 = 4/6
so that
(2/3 - 1/6) <em>x</em> = (4/6 - 1/6) <em>x</em> = 3/6 <em>x</em> = 1/2 <em>x</em>
Then the equation is
17 = 1/2 <em>x</em>
Multiply both sides by 2:
2 × 17 = 2 × 1/2 <em>x</em>
34 = <em>x</em>
Answer:
tan(45°) = 1
Step-by-step explanation:
We know that sin (45°) = √2/2, and cos(45°) = √2/2.
Given that tan(x) = sen(x) / cos(x), we get:
tan(45°) = (√2/2) / (√2/2) = 1
Therefore, tan(45°) = 1
Attached you will find the important angles summary
