U-v=0 7u+v=0 solve by substitution

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Mathematics

12 August, 07:10

U-v=0 7u+v=0 solve by substitution

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Tess Ochoa · Answer 1

U=0

V=0

If u-v=0, they must be both the same number. Therefore, u=v. 7u+v=0. 7u is 7*u but we must get the answer reduced to 0 so u=0. We already know from the first sentence that u=v. In conclusion, both variables are equivalent to 0.

Gemma Holland · Answer 2

Adding v to both sides of the first equation, we have that u=v. Substituting this into the second equation, we have that 8u=0, and thus that u=0. Since u=v, we have v=0, so our solution is u=0, v=0.