They are terms of an expression which can be simplified to 4x+12 or factored to 4*(x+3)
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
3x + 12 = 42 3x = 30 x = 10
3x + 4 = 16 3x = 16 - 4 x = 12/3 x = 4
7x + 16 = 3x + 4 4x = -12 x = -3
You simply multiply the expression on the outside (in this case, 3) by each of the expressions inside the parentheses, and add everything up. In this case, 3x + 3 times 4.
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2
3x + 12 = 42 3x = 30 x = 10
It is: 3x^2 +15x +12
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
x = 12
2x+12-3x = 5 2x-3x = 5-12 -x = -7 x = 7
3x + 8 = 20 3x = 20 - 8 3x = 12 3x = 12/3 x = 4
3x+8 = 12 3x = 4 x = 4/3
3x + 12 can also be written as 3(x + 4)
X intercept is the value of X when Y = 0 -5Y + 3X = 12 ley Y = 0 3x = 12 x = 4
4+3x-27=-12 To solve it... 3x= -12-4+27 3x= 11 x= 11/3 x= 3.666