Answer:
x=2
Step-by-step explanation:
Distribute the second bracket:
Sum similar terms, bringing all number right of the equal sign - careful, they change sign!
Answer:
i think 11
Step-by-step explanation:
Answer:
<u>n=-6</u>
Step-by-step explanation:
First, distribute the 5 and the -
5n+20-n-7=-11 now combine like terms,
4n+13=-11 subtract 13 from each side
4n=-24 divide by 4
/4 /4
<u>n=-6</u>
Answer:
7
Step-by-step explanation:
the answer is 7
21 is 3 times 7
Answer:
(4, 2)
Step-by-step explanation:
( x,y) -----} ( x,-y)