Answer:
x = 61
Step-by-step explanation:
A straight line equals 180, so:
2x + 3 + x - 6 = 180
add like terms
3x - 3 = 180
add 3 to both sides
3x = 183
divide by 3
x = 61
Answer:
= 3b/4
Step-by-step explanation:
= b . 4/12 + b . 3/12 + b . 2/12
Apply the fraction rule: a/c + b/c = a + b/c
= b . 4 + b . 3 + b . 2/12
= 4b + 3b + 2b/12
Add similar elements: 4b + 3b + 2b = 9b
= 9b/12
Cancel 9b/12: 3b/4
= 3b/4
4(r)^x=y
4(r)^(1)=2
r=1/2
y=4*(1/2)^x