Best Answer

3x + 5 = 20

Subtract 5 from each side:

3x = 15

Divide each side by 3:

x = 5

Q: What does x equal 3x plus 5 equals 20?

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3x+5=20 x=5 since 5x3+5=20

x = 15

In the equation 3x plus 7 equals 13, x is equal to 2.

3x+5=20 3x=15 x=5

-3x + 5 = 20 -3x = 15 x = -5

Related questions

3x+5=20 x=5 since 5x3+5=20

x = 15

3x+5=20 3x=15 x=5

-3x + 5 = 20 -3x = 15 x = -5

In the equation 3x plus 7 equals 13, x is equal to 2.

8+7x = 20+3x 7x-3x = 20-8 4x = 12 x = 3

2x + 20 = 3x20 = 3X - 2X20 = X

3x + 8 = 20 3x = 20 - 8 3x = 12 3x = 12/3 x = 4

4x + 5 = 3x + 84x-3x + 5 - 5 = 3x - 3x + 8 -5x = 3

11x + 8 = 8x + 20 3x + 8 = 20 3x = 12 x = 4

7.5

-2x+20 = 3x 20 = 3x+2x 20 = 5x 4 = x So x = 4