First of all, you would use the FOIL method for -5(a + 3). This means to just multiply -5 to all of the values in the parenthesis. This would equal:
-5a -15 = -55
Then after, you would add 15 for both sides and get -5a = -40
Divide by -5 on both sides, you get a = 8.
Here is a visual representation: https://puu.sh/zPxLC/a16740d0ce.png
To set this up you will set the two angles equal to 180° since it is a straight line
This will make the equation x+6x+19=180
Combine like terms. 7x+19=180.
Subtract 19 from both sides. This will make it 7x=161
Divide both sides by 7. That will make it x=23
Next plug in the x to solve for abc. 7(23)+19. This equals 157
X= 23
Hope this helped :)
Answer:
the shape of the base is a rectangle, and the area of that rectangle is 160
Step-by-step explanation:
Answer:
x/7+13=32
Step-by-step explanation:
work backward so subtract 13 from 32 and get 19 multiply it by 7 and get 133, to make sure your answers right just substitute 133 back into the equation
