Answer:
x = 8
y = 6
Step-by-step explanation:
First and foremost, it's an equilateral triangle, therefore all sides and angles are equal.
Knowing that the sum of angle in a triangle is 180°, therefore each angle is 60°.
Then equating (7x+4)° to 60, we have that,
7x+4=60
7x=60-4
7x=56
x=56÷7
x=8.
Answer:15
Step-by-step explanation:
Answer:
a) 20
b) 7
c) 18
d) 5
e) 36
f) 72
g) 10
Step-by-step explanation:
Answer:
Infinitely many
Step-by-step explanation:
12x+1=3(4x+1)-2
Expand 3(4x+1)-2
12x+3-2
12x+1
12x+1=12x+1
Simplify.
0=0
True for all values of x
