Help plz what is the value of x

the interior angles of any triangle are equal to 180.

In other words m<BAC + m<ABC + m<ACB = 180.

Therefore,

(3x-1) + (8x-35) + (6x-5) = 180

Now that we have an equation, we can solve for x:

(3x-1) + (8x-35) + (6x-5) = 180

Combine like terms:

3x+8x+6x-1-35-5

17x-41 = 180

Add 41 to each side:

17x-41+41 = 180+41

17x=221

Divide by 17 on both sides:

x=13

Now to check if this is correct we need to plug in x for each equation and the three numbers combined should equal 180.

3x-1

3(13)-1

38

6x-5

6(13)-5

78-5

73

8x-35

8(13)-35

104-35

69

Now we just add them to see if they equal 180

38+73+69 = 180

x=13 is valid

Step-by-step explanation:

c

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)