Solve by substition x-y=-1 3x+2y=22

x=4 and y= 5

Step-by-step explanation: 1 Solve for xx in x-y=-1x−y=−1.

x=y-1

x=y−1

2 Substitute x=y-1x=y−1 into 3x+2y=223x+2y=22.

5y-3=22

5y−3=22

3 Solve for yy in 5y-3=225y−3=22.

y=5

y=5

4 Substitute y=5y=5 into x=y-1x=y−1.

x=4

x=4

5 Therefore,

\begin{aligned}&x=4\\&y=5\end{aligned}

​

x=4

y=5

​

the thermometer is precise but not accurate

step-by-step explanation:

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0