-2 7/12 ... decimal form -2.583 ... exact form -31/12
Answer:
Any choice that has a slope of -1/2
Step-by-step explanation:
-2x - 4y = 3
-4y = 2x + 3
4y = -2x - 3
y = -1/2x -3/4
y = mx + b
m = slope
Answer: 6 and 5
Step-by-step explanation:
Explained already by another user
We will use the elimination by addition/subtraction method to solve for y:
Given <span>2x - 2y = -20 and -2x + 4y = 14, add the second equation to the first:
</span><span> 2x - 2y = -20
</span> -2x + 4y = 14
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2y = -6. Solving for y: y = -3.
Find x by subst. y=-3 into either of the given equations.
If we choose the first equation, then it becomes 2x - 2(-3) = -20
Solve this for x: 2x + 6 = -20, or 2x = -26, or x = -13.
The solution is (-13,-3).