Answer:
Work shown below!
Step-by-step explanation:
(x + 4)(x - 3) = 
An algebraic expression is, obviously, an expression with a variable.
"A number" would represent a variable, which, in this case, we'll use y.
So, 15 decreased by twice x.
15 - y x 2 =
I hope this helped :)
Answer:
n=15
Step-by-step explanation:
subtract 8 from both sides to get 3n=45
divide both sides by 3 to solve for n to get n=15
The equation of the line is y =
x +
Step-by-step explanation:
The form of the linear equation is y = mx + b, where
- m is the slope of the line,
- b is the y-intercept, to find b substitute x and y in the equation by the coordinates of any point on the line
∵ A line passes through points (
, 5) and (
, 4)
∴
=
and
=
∴
= 5 and
= 4
- Substitute them in the rule of the slope to find m
∵
∴
- Substitute it in the form of the equation
∴ y =
x + b
- To find b substitute x and y in the equation by the coordinates
of any point on the line
∵ Point (
, 5) lies on the line
∴ x =
and y = 5
∴ 5 =
(
) + b
∴ 5 =
+ b
- Subtract
from both sides
∴
= b
∴ y =
x +
The equation of the line is y =
x +
Learn more:
You can learn more about the linear equations in brainly.com/question/1284310
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