Answer:
Step-by-step explanation:
Substitute y = x-4 in the first equation.
Distribute -2 in the expression.
Because we only want to find the value of x.
Therefore the answer is -4.
Answer:
3 + b
Step-by-step explanation:
Hope this helped
Answer:
Below.
Step-by-step explanation:
15+10+8=33.
Answer:
A= 6 (4+3)
Step-by-step explanation:
To find the zeros set the equation equal to zero:
x^2 - 5x +4 = 0
Factor:
(x-4) (x-1) = 0
Now solve each set of parenthesis so that they equal zero:
(x-4) = 0, x =4
(x-1) = 0, x = 1
The zeros are 1,4