3x + 12 + 10x = 13x + 12
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
(6-4x)(x-2)+3x =6x-12-4x+8x+3x =5x-4
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
It is: 3x^2 +15x +12
It depends on what it is meant to be equivalent to!
The equivalent expression of 3x-9 plus 3x plus 5 is negative 4.
3x + 12 + 10x = 13x + 12
It is equivalent to: 3x+6+5 = 3x+11
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
(6-4x)(x-2)+3x =6x-12-4x+8x+3x =5x-4
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
3x + 12 = 42 3x = 30 x = 10
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
It is equivalent to: 3x+6+5 = 3x+11
It is: 3x^2 +15x +12
4x2+3x+6+5x+3x+6 = 4x2+11x+12 when simplified