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17.12.2019 •
Mathematics
5x + 2(x-1) =7 what is the value of x
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Ответ:
1.) - 5x + 2x - 2 = 7
Distribute 2 into x and - 1.
2.) - 3x - 2 = 7
Add - 5x and 2x together.
3.) - 3x = 9
Add 2 to both sides to keep it even.
4.) x = - 3
Divide both sides again by - 3 to keep it even.
Ответ:
the difference of 4 is written as -4
"is" is the equal sign
and 16 the value that is equals
1/5x-4=16