Answer: -23
Step-by-step explanation:
Since we are given the value of m, all we have to do is to plug m into the expression and solve.
-23(-38+39) [parenthesis]
-23(1) [multiply]
-23
Now, we know that the expression is -23 when m=-38.
Answer:
no solution
Step-by-step explanation:
when you substitute
for
the equation is false
how I solved this:
1. substitute
for
![6x+3(-2x+4)=-12](https://tex.z-dn.net/?f=6x%2B3%28-2x%2B4%29%3D-12)
2. distribute the 3
![6x+-6x+12=-12](https://tex.z-dn.net/?f=6x%2B-6x%2B12%3D-12)
3. combine like terms
![12=-12](https://tex.z-dn.net/?f=12%3D-12)
this is incorrect because 12 does not equal -12, so there is no solution
First, we have to find what x equals. If all the angles add up to 180°, then we can make the equation 2x+2x+6x=180. If we combine like terms, the equation simplified to 10x=180. If we divided both sides by 10, we get that x=18. Now, we can plug in x in 2x to get 2(18). 2×18=36. Angle C is 36°!
Answer:
(3z - 1)(z + 9)
Step-by-step explanation: