0
3x + 12 = 42
3x = 30
x = 10
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∙ 9y ago
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3x plus 12 equals x plus 48?
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
What is 3x plus 12?
3x + 12 is an algebraic expression. An algebraic expression involves variables, constants or both.
7x plus 16 equals 3x plus 4?
7x + 16 = 3x + 4 4x = -12 x = -3
Expand 3(x plus 4)?
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.
6x2 plus 32x plus 12-4x-3x2-36?
6x^2 +32x +12 -4x -3x^2 -36 = 3x^2 +28x -24 simplified
What does 3x plus 42 equals 6x plus 12 mean?
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
15 plus 3x 42 then x?
If 15 + 3x = 42, then x = 9
What is 3x plus 12 plus 10x?
3x + 12 + 10x = 13x + 12
3x plus 12 equals x plus 48?
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
What is the answer to 42 divided by something x 3multiplied by 12 equals 24?
(42/3x)*12=24 42/3X=2 42=6X x=7 if it'isn't 3x but x^3 then 21=X^3 21^(1/3)=2.76
What is the answer to 4 plus 6x equals 5 plus 3x plus 7?
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
What is the answer to (3x plus 3)(x plus 4)?
It is: 3x^2 +15x +12
What is 4xx plus 3x plus 6 plus 5x plus 3x plus 6 simplfied?
4x2+3x+6+5x+3x+6 = 4x2+11x+12 when simplified
Solve for y -3x plus 6y equals 12?
y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
What is 3x plus 8 equals 12?
3x+8 = 12 3x = 4 x = 4/3
What is the answer to7x-12 equals x plus 2 plus 2x-3x?
simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2
What is 6-3x plus 12 equals 0 and why?
6-3x+12=0 6+12-3x=0 18-3x=0 18=3x x=6
