Respuesta :
Answer: (-2,1)
Step-by-step explanation:
y=x+3
y=2x+5 substitute the y value in the first equation into the second equation
x+3 = 2x+5 now solve for x
-3 -3
x = 2x +2 subtract 2x from both sides
-2x -2x
-1x = 2 Divide both sides by -1
x= -2
The value of x is -2 to plot it into one of the equations to solve for y.
y= -2 + 3
y = 1
(-2,1)
Answer: x = − 2 and y = 1
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
/| y-x-3 = 0| y-(2*x)-5 = 0
We try to solve the equation: y-x-3 = 0
y-x-3 = 0 // + -x-3
y = -(-x-3)
y = x+3
We insert the solution into one of the initial equations of our system of equations
We get a system of equations:
/| x-(2*x)-5+3 = 0| y = x+3
-x-2 = 0 // + 2
-x = 2 // * -1
x = -2
We insert the solution into one of the initial equations of our system of equations
For y = x+3:
y = 3-2
y = 1
We get a system of equations:
/| y = 1| x = -2