3 years ago

Find the solution to the following system using substitution or elimination:

Mathematics

2 answers:

stepladder [879]3 years ago

7 0

Answer: A

Explanation:

Just use substitution because it's more efficient. Plug -2x-8 into y to make -2x-8=3x+2. Add 8 to both sides to get -2x=3x+10. Subtract 3x to both sides to get -5x=10. Divide -5 to both sides to get x=-2. Now, plug in x=-2 to one of the equations, let's use y=3x+2. The equation would be y=3(-2)+2. Multiply 3 and -2 to get -6. Add -6 to 2 and you'll result with y=-4.

borishaifa [10]3 years ago

3 0

It should be A (-2,-4). When using elimination.

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