elenagarcia123
17.03.2020 •
Mathematics
Solve for x
-x + 1 = x + 21
Solved
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Ответ:
x=-10
Step-by-step explanation:
first put "x" on one side and the constants on the other
the equation becomes 2x=-20 or -2x=20
both cases divide by 2 and the answer becomes x=-10
or if you end up with -x=10 just multiply by -1 and it ends up the same
Ответ:
D) - 1
Step-by-step explanation: