Answer:
x=9
Step-by-step explanation:
Since the triangle is an equilateral, we know that all sides, and in turn angles are equal. The interior angle for an equilateral triangle is 60 degrees. Since we are looking for what x equals, we plug the 60 into that equation.
7x-3=60
When solved, you get x=9.
Answer:
136
Step-by-step explanation:
42 times 3 plus 6 just a guess
Answer:-abc
Step-by-step explanation:
To collect like terms of
8a^6bc-abc-8a^6bc
=8a^6bc-8a^6bc-abc
=-abc
Answer:
Step-by-step explanation:
In this equation what is strange is probably using the letter a as the unknown, but this is a matter of choice we could have calle y or z for that matter. Then we will treat it ans any other equation and solve it.
-11 -5a = 6(5a+4)
-11 -5a= 30a + 24
-11 - 24 = 30a + 5a (placing the unknown a in the rght side and the numbers in the left to solve the equation)
- 35 = 35a
-35/35 = a
- 1= a
We already have the equation written, we only have to solve it for h. To do so, simply divide both sides by 7, so that we can isolate h on the left hand side: