If you mean: 7x = 49 then the value of x is 7
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45+4 = 49 49/7=7 7*7=49-4=45 so x=7
Factoring involves 'factoring out' the common numbers for each term. In a simple general form, a + ab = a(1+b). It's like "undistributing" factors: instead of multiplying both terms by a number, you essentially divide both terms by a number. In (7x + 49), both terms - 7x and 49 - have 7 as a factor. So, it can also be written: 7x + 49 = 7(x+7)
your expression is this... 7x < 49 x < 7 so any number below 7 can be your answer
6x
6x+x=7x