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3x - 6 = 15
3x - 6 + 6 = 15 + 6 (NOTE: In an equation with =, you can do ANYTHING you want to the problem as long as you do the exact same thing to both sides.)
3x = 21
x = 7
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∙ 14y ago
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What does x equals in 3x 12 equals 18?
3x+12 = 18 3x = 18-12 3x = 6 x = 2
What is 5x plus 9 equals 3x 15?
if you meant 5x+9=3*15 then, 5x = 36, x = 7.2 if you meant 5x+9=3x+15 then, 2x = 6, x = 3
7-3x equals -4x 13?
7-3x = -4x + 13x = 6
5x2 y equals 3x-6y as a function?
5x2y = 3x - 6y 5x2y + 6y = 3x y(5x2 + 6) = 3x y = (3x)/(5x2 + 6) This is a rational function.
Solve the equation for x 6x plus 6 equals 3x - 2?
6x + 6 = 3x - 2 Bring 3x to the left and subtract: 6x - 3x = 3x 3x + 6 = -2 -2 - 6 = -8 -8 / 3 X = -8/3
What is answer 3x-6 equals 15?
3x-6=21-6=15
What is -3x-6 equals -15?
-3x=-15+6 -3x=-9 x=-9/-3 x=3
What is this equation -15-3x equals 6-10x?
-15-3x=6-10x -15=6-7x -21=7x x=3
If y equals 3x minus 6 and x equals 7 then y equals?
15
What is 5x plus 6 equals 2x plus 15?
5X + 6 = 2X + 15 -2X -2X 3X + 6 = 15 -6 -6 3X = 15 ---- ----- 3 3 x = 5 im so smart.
If 3x plus 7 equals 15 what does x equal?
3x+7=15 -7 -7 3x=6 (Divide) 3 3 x=2 Check it: 3(2)+7=15 6+7=15 15=15 :D
What is 4x plus 6 minus7x plus 9 equals 18?
4x+6-7x+9=18-3x+15=18-3x=3x=-1
4x plus 6 equals 21 plus 3x?
x = 15 as 4*15+6 = 66 3*15+21 = 66 or an easier way to do it 4x - 3x = 1x 21 - 6 = 15 1x = 15
3x-6 equals 15?
This can be solved using algebra.Add 6 to each side: 3x=21Divide each side by 3: x=7That is your final answer. X equals seven.
What is -15 equals 3 plus 3x?
-15 = 3 + 3x is an equation in one variable, x, which can be easily solved, by simple algebraic manipulation...-15 = 3 + 3x-18 = 3x {subtract 3}-6 = x {divide by 3}... so, x = -6.
What is 15 plus 3x equals 6?
It is a linear equation in a single variable, x.
What is -3x plus 5 plus 6 equals -15?
-3x + 5 + 6 = -15 Multiply by -1 (swap all signs): 3x - 5 - 6 = 15 Combine like terms on left side: 3x - 11 = 15 Add 11 to both sides: 3x = 26 Divide both sides by 3: x = 26/3 or 8.66...
