Answer:
89
Step-by-step explanation:
False. You can find the solution more quickly by solving the system algebraically.
-4x + 2y = 18
Since y=-3x+4,
-4x + 2(-3x+4) = 18
-4x - 6x + 8 = 18
-10x = 10
x = -1
y = -3x+4 = 7
Answer:
i think it is the 4th option
Step-by-step explanation:
surry if im wrong
Answer:
The answer in the attached figure
Step-by-step explanation:
we have
This is a linear equation
The slope is equal to 
The y-intercept is equal to the point 
----> value of the function f(x) when the value of x is equal to zero
The x-intercept is equal to the point 
----> value of x when the value of the function is equal to zero
using a graphing tool
see the attached figure
The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.
To find x, add the two angles together to equal 180:
7x + x+20 = 180
Combine like terms:
8x + 20 = 180
Subtract 20 from both sides:
8x = 160
Divide both sides by 8:
X = 20
