Answer:
x=17
Step-by-step explanation:
(5x-58)=(2x-7) ->(because of cosine-rule)
3x=51
x=17
Answer:
2x-7
Step-by-step explanation:
Answer:

Step-by-step explanation:

…………………………
f(y) = x
⇔ 5y = x


Answer:
n = 25
Step-by-step explanation:
Add to both sides.
n = 17 + 8 = 25
0.5 is less then 6/10 because 6/10 is equal to 0.6