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Subjects>Math>Math & Arithmetic

How do you solve 3x minus 6 equals 21?

Updated: 10/24/2022

Wiki User

∙ 13y ago

Best Answer

3x-6 = 21

3x = 21+6

x = (21+6)/3

x = 9

You shouldn't ask us to solve your math homework.

Wiki User

∙ 13y ago

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Solve for x 3x equals 96 minus 75?

7

Solve the equation 15x minus 12 equals 3x plus 8?

15x minus 8=minus 180 3x+8=24

Solve 5x2 minus 3x minus 1 equals 0?

5*2-3x-1 = 0 10-3x-1 = 0 -3x = 1-10 -3x = -9 x = 3

How do you solve 6x minus 3x equals 6?

6x-3x =6 3x=6 so 6 divided by 3 = 2

Solve for x 3x equals 96-75?

3x=96-75 3x=21 x=7

Related questions

Solve for x 3x equals 96 minus 75?

7

3x minus y equals 9 solve for y?

3x-y=9 y=3x-9

Solve the equation 15x minus 12 equals 3x plus 8?

15x minus 8=minus 180 3x+8=24

Solve 5x2 minus 3x minus 1 equals 0?

5*2-3x-1 = 0 10-3x-1 = 0 -3x = 1-10 -3x = -9 x = 3

How do you solve 6x minus 3x equals 6?

6x-3x =6 3x=6 so 6 divided by 3 = 2

Solve for x 3x equals 96-75?

3x=96-75 3x=21 x=7

What is the answer for x 3x equals 96-75?

Solve for x: 3x=(96-75) 96-75= 21 / 21:3= 7

How do you solve 7x plus 6 equals -3x minus 24?

7x+6 = -3x-24 7x+3x = -24-6 10x = -30 x = -3

How do you solve 3x squared plus 5x minus 25 equals 0?

x = 25 / 3squared + 5

What is the mistake in this solving of an equation 3x minus 12 equals 10x minus 15 minus 6x minus 10 3x minus 12 equals 4x minus 25 3x plus 13 equals 4x 13 equals x?

3x - 12 = 10x - 15 - 6x -10 3x - 12 = 4x -25 3x + 13 = 4x 13 = 4x - 3x 13 = x None?

Solve 6 minus 3x equals 4 minus 2x?

6 - 3x = 4 - 2x 6 = x + 4 x = 2 Check it. 6 - 6 = 4 - 4 It checks.

3x plus 4 equals 5x minus 6 solve for x?

3x+4 = 5x-6 3x-5x = -6-4 -2x = -10 x = 5

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