ybhques7
31.01.2020 •
Mathematics
How many solutions does this equation have?
a+3+2a=-1+3a+4
a. infinite solutions
b. two solutions
c. no solution
d. one solution
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Ответ:
a. Infinite solutions.
Step-by-step explanation:
Let's try solving it:
a + 3 + 2a = -1 + 3a + 4
Subtract 3a from both sides:
a + 2a - 3a + 3 = -1 + 4
3a - 3a + 3 = 3
3 = 3
So the original equation is an identity and there are infinite solutions.
Ответ:
In step 2, he had to add 5 positive unit tiles.
Step-by-step explanation: