No, 12x and 14y are not like terms. Like terms are terms that have the same variable raised to the same power. In this case, 12x has a variable x raised to the first power, while 14y has a variable y raised to the first power. Since the variables are different, they are not considered like terms.
6x+14y+8x-18y = 14x-4y
If: 6+17y = 15+14y then 17y-14y = 15-6 so 3y = 9 and then y = 3
2
12x-4y+9z+2y =12x-2y+9z
You mean like these?: 9 * 2 - (-2 + 9) + 15 / (4.5 + 3) (6x + 7y) * 2 (y - 6x)=(6x*2y)-(6x*12x)+(2y*7y)-(12x*7y)=12xy-72x^2+14y^2-84xy=14y^2-72x^2-72xy
If this is algebra then; 3x plus 12x = 15x
2y-7 = 14y+29 2y = 14y + 36 -12y = 36 -y = 3 y = -3
-4y
2 plus 2 equals 4.
12x+x = 13x
It's a linear expression in two unknowns.It can be simplified a little bit:18x + 14y + 3x - 10y = 21x + 4y