Answer:
XZ = 12x + 6
Step-by-step explanation:
XZ = XY + YZ
XZ = <u>4x</u> + 7 + <u>8x</u> - 1
XZ = 12x + 6
Answer:
Hi! The correct answer is x = -1 y = -1 and the ordered pair is (-1,-1)
Step-by-step explanation:
<em><u>~Solve the first variable in one of the equations, then substitute the result into the other equation~</u></em>
Answer:
12f-5f²+6f+10f²= 10f²-5f²+12f+6f=5f²+18f
Answer:

Step-by-step explanation:
<em>Find the equation of the dashed line</em>
The line pass through the points
-----> is the y-intercept of the line

Find the slope of the line m
The formula to calculate the slope between two points is equal to

substitute the values

Remember that
The equation of the line into slope intercept form is equal to

we have

substitute

<em>Find the inequality</em>
we know that
The solution of the inequality is the shaded area below the dashed line
so

Answer:
x = -2
Step-by-step explanation:
-4x + 3y = 23
y = -7x - 9 // *-3
-4x + 3y = 23
-3y = 21x -27
+++++++++++++++++++
-4x = 21x + 50
-50 = 25x
x = -2