How many solutions are there in x + 2 y = 5 and 2 x − 2 y = 4 ?

Adding the two equations, you get that 3x=9, so x=3. Since there is only one value of x, there is only one solution.

a framing bias

step-by-step explanation:

rodrigo is subject to a framing bias i believe.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column