Answer: The solution is (-1,-1).
Step-by-step explanation:
-2x + 7y = -5
-2x -4y = 6
Solve using the elimination method. First multiply the top equation by -1 to develop a new equation to eliminate the x variable.
-1(-2x + 7y) = -1(-5)
New equation: 2x -7y= 5 Using this new equation, add it to the down equation to eliminate the x variable.
+ 2x - 7y = 5
-2x -4y = 6
-11y = 11 Divide both sides by -11.
y = -1
We will now input, the value of y into one of the equation to solve for x.
2x - 7(-1) = 5
2x + 7 = 5 Subtract 7 from both sides
-7 -7
2x = -2 Divide both sides by 2.
x = -1
