Which is the value of x in the solution to the following system of equations? x-y=-3 x+3y=5

x = -1

Step-by-step explanation:

The system of equations is given as x - y = -3 (1) and

x + 3y = 5 (2)

We have to find the value of x

For which we will eliminate y from these equations.

We multiply equation (1) by 3 and add it to equation (2)

3(x-y) + (x+3y) = -9 + 5

(3x + x) + (3y - 3y) = -4

4x = -4

x = -1

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3