Answer:
c. you substitute the values of C.
Y-1=3 it should be
opposite to +1 is -1 so yeah
A function is a type of relation in which there is only one output value for each input value
10(1 + 4a) - 7a = -6a + 5(1 + 8a)
10 + 40a - 7a = -6a + 5 + 40a
-40. -40
10 - 7a = -6a + 5
-7a + 6a = 5 - 10
-a = -5
5 = a
First, you have to combine the 6x and the 10x you do this by subtracting 6x from each side. doing that you get....
-11=4x-51
then, you have to combine the -11 and the -51 you do this by adding 51 to each side. doing that you get....
40=4x
lastly, you need to divide each side by 4 to isolate the variable x. you get...
x=10