2(x - 4) + 2x = -6x – 2
2 answers:
Answer:
Step-by-step explanation:
- Apply the distributed property to 2(x - 4). It should now look like this: 2x - 8
- Plug 2x - 8 in: 2x - 8 + 2x = -6x - 2
- Combine like terms on the left side, so it now looks like this: 4x - 8 = -6x - 2
- Combine like terms even further: 4x - -6x = 8 - 2
- Simplify: 4x + 6x = 6
- Start adding, so it now looks like this: 10x = 6
- Divide each side by 10 to cancel out the 10 next to x. It should now look like this: x = 3/5
I hope this helps!
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Answer:
a. The student's conclusion is incorrect because the solution to the system of equations 3x + 4y = 32 and 5x + 5y = 50 is (8, 2).
Step-by-step explanation:
The second equation needs to be ...
5x +5y = 50
because the wording "short of $18" means that the actual cost of that purchase would be $18 more than the $32 that Harry had. 18+32 = 50.
The only answer choice that shows this as the second equation is choice A.
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In fact, the solution to the system of equations is (8, 2), as can be seen in the graph below.
