Since x is a factor of both numbers, ignore it and find the LCM of 7 & 12. These two numbers do not share any factors, so their LCM is 7*12 = 84. Put the x back in for the final answer - 84x.
It is: 12x
12x+2
5x-3 = 11+12x 5x-12x = 11+3 -7x = 14 x = -2
56x2
First, you remove every x that you can from the equation. Next, you reach the simplest form of the equation, which is (7x-2)(x-2). Which is the lowest factorable form.
12x - 4 = 7x - 21 12x -7x = -21 + 4 5x = -17 x = -3.4
-12x-2Given: -5x-(7x+2)This is the same as -5x-1(7x+2). Use the distributive property and multiply the -1 through (7x+2).-5x-7x-2Simplify.-12x-2
LCM(12x, 8y) = 24xy.
19x
The LCM is 1320.
5x-8 + 7x 12x-8 12x = 8 x = 8/12 x= 2/3
It is: 12x
12x - 28 = 7x - 63Subtract 7x from each side:5x - 28 = -63Add 28 to each side:5x = -35Divide each side by 5:x = -7
12x and then the squared. (the little two)
6x2 + 7x = 56x2 + 7x - 5 = 0x =[ -7 ± √[72 - 4(6)(-5)] ]/2(6)x = [-7 ± √(49 + 120)]/12x = (-7 ± √ 169)/12x = (-7 ± 13)/12x = (-7 + 13)/12 or x = (-7 - 13)/12x = 6/12 = 1/2 orx = -20/12 = - 5/3
120x
To simplify the expression (7x + 9 + 12x + 11 + 2y), first, combine the like terms. The terms with (x) are (7x) and (12x), which combine to (19x). The constant terms (9) and (11) combine to (20). Thus, the simplified expression is (19x + 20 + 2y).