Find the value of
3k-7 if k=-4

-19

Step-by-step explanation:

first substitute K for -4

3(-4)-7

then multiply 3 and -4

3 times -4=-12

-12-7=-19

Answer check

to check the answer u can just take the equation which is 3k-7 and the solution

3k-7=-19

and solve for K

add 7 on both sides

3k=-12

divide 3 on both sides

K=-4

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x