ErnieIrwin
07.07.2019 •
Mathematics
How many solutions are in 4(x-5)=3x+7
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Ответ:
Expand bracket to get
Group like terms to obtain,
This is the only solution
Ответ:
1 solution
This is an equation in only 1 variable (x ) thus will have only one solution
Solving to illustrate
4(x - 5) = 3x + 7 ( distribute left side )
4x - 20 = 3x + 7 ( subtract 3x from both sides )
4x - 3x - 20 = 7
x - 20 = 7 ( add 20 to both sides )
x = 7 + 20 = 27 ( one solution )
Ответ:
2) n = 75 degrees, p = 105 degrees
3) q = 68 degrees
4) r = 125 degrees
5) s = 83 degrees
6) t = 70 degrees