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Q: If 3x equals 6x- 15 then x plus 8 equals?

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9x+6 = 6x+15 9x-6x = 15-6 3x = 9 x = 3

6x-7 = 3x+5 6x = 3x+12 (subtracting -7) 3x=12 (subtracting 3x) x=4 (dividing by 3)

3x + 8 = 20 - 3x 6x = 12 x = 2

Watch closely:6x = 3x + 27Subtract 3x from each side:3x = 27Divide each side by 3:x = 9

3x + 6y + 6x = 9x + 6y which can be factorised as 3(3x +2y)

Related questions

-3 + 3x + 6x = 15 combine like terms 6x and 3x are like terms as are -3 and 15 9x = 18 x = 2

x=4/3

6x - 12 = 3x + 15 3x = 27 x = 9

9x+6 = 6x+15 9x-6x = 15-6 3x = 9 x = 3

6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...

3x + 5 = 6x + 23 -3x = 18 x = -6

3x=6x-15 ....you want to take 6x and put it on the other side of the = sign. To do that you do the opposite. So you would subtract since 6x is a positive number. so then the equation is 3x-6x=-15. 3x-6x = -3x which makes the equation -3x=-15. Then you would take -3 which is being multiplied by x and do the opposite operation on the other side. so -3 divided by -15 equals 5. which makes the equation now x=5. So then 5+8=13

x=10

the answer is -3x = 0

2x - 6x + 3x = -412x - 3x = -41-1x = -41x = 41

3x + 7 = 6x - 2 Rearranging gives 6x - 3x = 7 + 2 3x = 9 x = 3

3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x

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