Answer: B
Explanation: if you look at A and try to combine like terms, you will add the -x on the right side the the one on the left, cancelling out the x on the left. then you have 0=x+0, and unless x=0, it is not true.
With B, when you add x to the -x, you cancel it out, giving you 0=0, which is true. hope it helps!
9. You can easily get rid of the decimal fraction by multiplying by 10. This will move the decimal point one place to the right in each number.
However, since all the decimal fractions are even numbers of tenths, you can also turn them to integers by multiplying by 5:
... 3x +24 = 36
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10. If you can't describe what the parts of your equation represent, you have no business writing it. Saying you can't describe your equation is the same as saying you don't understand the problem.
It is important to be able to describe the parts of the equation just as it is important to be able to say what the problem is telling you, what it is asking, and what your strategy is for solving it. The parts of the equation are intimately tied with those things: they embody the given information and the strategy of your solution.
Answer:
10x-20y
Step-by-step explanation:
5 x 2x - 5 x 4y
10x - 20y
Answer:
Triangle ABC is congruent to triangle DCB
Step-by-step explanation:
In triangle ABC and triangle DCB
Angle ACB = Angle DBC = 90 degree (given)
AB = DC (given)
BC=BC(Common)
Therefore triangle ABC is congruent to triangle DCB
