x+4x/15-x=-7/3-3/5 (bringing like terms together)
4x/15=-7/3-3/5 (Make the denominator common by multipying 3 with 5 and 5 by 3)(Also multiply the numerator by the same numbers)
4x/15=-35-9/15(15 cancels out on both sides)
4x=-44 (divide 44 by 4)
x=-11
the question says solve for x
x+3/5+4x/15=x-7/3
2 answers
I don't like fractions and if I can avoid them , I will
multiply each term by the LCD, in this case 15
15x + 9 + 4x = 15x - 35
4x = -44
x = -11
I have a strange feeling that you meant:
(x+3)/5 + 4x/15 = (x-7)/3
again, times 15
3(x+3) + 4x = 5(x-7)
3x + 9 + 4x = 5x - 35
2x = -44
x = -22
See what difference brackets make and how critical it is to have them?
multiply each term by the LCD, in this case 15
15x + 9 + 4x = 15x - 35
4x = -44
x = -11
I have a strange feeling that you meant:
(x+3)/5 + 4x/15 = (x-7)/3
again, times 15
3(x+3) + 4x = 5(x-7)
3x + 9 + 4x = 5x - 35
2x = -44
x = -22
See what difference brackets make and how critical it is to have them?
11 answers