Sole the equations for (x, y) 3x+y=1 and
x-y = -5

(- 1, 4 )

Step-by-step explanation:

Given the 2 equations

3x + y = 1 → (1)

x - y = - 5 → (2)

Adding the 2 equations term by term eliminates the term in y, that is

(3x + x) + (y - y) = (1 - 5), simplifying gives

4x = - 4 ( divide both sides by 4 )

x = - 1

Substitute x = - 1 into either of the 2 equations for corresponding value of y

Substituting in (1)

3(- 1) + y = 1

- 3 + y = 1 ( add 3 to both sides )

y = 4

Solution is (- 1, 4 )

4096 bacteria

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.