Answer:
x=30
Step-by-step explanation:
(30+x)+30+9x=360
We move all terms to the left:
(30+x)+30+9x-(360)=0
We add all the numbers together, and all the variables
(x+30)+9x+30-360=0
We add all the numbers together, and all the variables
9x+(x+30)-330=0
We get rid of parentheses
9x+x+30-330=0
We add all the numbers together, and all the variables
10x-300=0
We move all terms containing x to the left, all other terms to the right
10x=300
x=300/10
x=30
Answer:
<em>Sam is 30 years old, and Harry is 10 years old.</em>
Step-by-step explanation:
Let us assume that the age of Sam is x and the age of Harry is y.
Sam is currently is three times Harry's age.
So,
----------------------1
Sam's age is also 10 more than twice Harry's age.
so,
---------------2
Subtracting 2 from 1, we get



putting this in equation 1,

Therefore, Sam is 30 years old, and Harry is 10 years old.
Answer:
y = 27
Step-by-step explanation:
If m=11, x=2, and b=5, then:
y = mx + b
Plug in the values into the linear equation:
y = 11(2) + 5
y = 22 + 5
y = 27