Answer:
x/2=20
or, x=20*2
or, x=40
Step-by-step explanation:
this is the answer
Answer:
x = -11/7 and x = 1/7
Step-by-step explanation:
(7x+2)^2+6(7x+2)=27
Subtract 27 from each side
(7x+2)^2+6(7x+2)-27=0
Let m = 7x+2
m^2 +6m -27=0
Factor
(m+9) (m-3) = 0
Using the zero product property
m+9 = 0 m-3 =0
m=-9 m=3
Substitute m = 7x+2 back in
7x+2 = -9 7x+2 =3
Subtract 2 from each side
7x+2-2 = -9-2 7x+2-2 = 3-2
7x = -11 7x =1
Divide by 7
7x/7 = -11/7 7x/7 = 1/7
x = -11/7 and x = 1/7
Answer:
6
Step-by-step explanation:
From the table given defining a function, the values of "x" on the table represents the input of the function, which gives us an output, f(x), which can be labelled as "y" in some instances.
Thus, the value of f(0), is simply the output value we would get, given an input value of "0".
<em>So therefore, f(0) = 6. That is, at x = 0, f(x) = 6.</em>
Answer:
Use y + x = 3 and solve for either x or y.
Step-by-step explanation:
Substitution is a method to solve a system of equations by substituting an expression from one equation into the other.
To begin, first solve one equation by isolating for one variable. Choose the equation which will have the least number of steps to do so.
y + x = 3 can be solve for x or y by subtracting the other variable. Since this only requires one step use this equation. Either variable can be used.