Step-by-step explanation:1
Answer:
x = 7
Step-by-step explanation:
<u>Distribute </u>-
12x − 66 + 15 = 3x + 12
<u>Combine Numbers and Variables</u> -
12x - 51 = 3x +12
<u>Get x on one side (isolate x)</u> -
9x - 51 = 12
9x = 63
<u>Divide 9</u> -
x =7
Answer:
Step-by-step explanation:
Try dividing the first equation by 3. The result will be identical to the second equation. Thus, we have two lines that coincide, and therefore there are an infinite number of solutions.
An isosceles triangle is one in which 2 angles have similar
measure while the other one is different. In this case, the 2 vertex angles
have a measure of 42 degrees, therefore the third angle which is equal to (2x +
3) is:
(2x + 3) + 42 + 42 = 180
2x + 3 = 96
<span>x = 46.5°</span>
