There is no property that justifies it. The equation is true for some values of x, not for others.
no
3x + 2 = 3x + 6 This is not possible.
3x plus 9 equals what?
(2, -1)
Their graphs are.
4x plus 7 plus 3x equals 19 plus xx = 2
Assuming the question to mean 3*x+3 = 3*(x+1) The reverse, ie 3*(x+1) = 3*x + 3*1 is known as the distributive property of multiplication over addition.
what is a slope
2x+3x = 5x
y=4x2+3x+8
50, 53, 59