5x + 3 = 18 Subtract 3 from both sides: 5x = 15 Divide by 5: x = 3.
4x+12-5x-30=-x-18
(5x-6)(x-3)
-10x + 5x = -5x
First collect like terms in the second equation: 5x - 18 = 4y - 3y ie y = 5x - 18 Substitute this for the term in y in the first equation, getting 3x + 2(5x - 18) = 16 ie 3x + 10x - 36 = 16 ie 13x = 16 + 36 so x = 4 and y = 5 x 4 - 18 ie 2.
18 + 7x - 12 + 5x = ?18 - 12+ 7x - 5x = ?6 + 2x = ?
5x squared plus 33x plus 18 = (5x + 3)(x + 6) x = -6, -3/5
10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
5x + 3 = 18 Subtract 3 from both sides: 5x = 15 Divide by 5: x = 3.
5x - 18 = 4x + 7Add 18 to each side:5x = 4x + 25Subtract 4x from each side:x = 25
4x+12-5x-30=-x-18
-4 5x + 2 = -18 0x + -2 = -2 ---------------- 5x + 0 = -20 5x / 5 = -20/5 x = -4
How do you add 2x plus 3y equals 18 in 5x-y equals 11
That equation has no solution. There is no possible number that's equal to 18 more than itself.
i got x = 1.35 12x+18=41-5x +5x 17x+18=41 -18 17x=23 /17 x=1.35
No.