Best Answer

It's a simple linear equation in 'x'.

It's not true unless x = 3 .

Q: What is 4x plus 3 equals 15?

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Without an indication of the equals sign, this is not an equation.

4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.

7x-5+2x=3-4x+12 7x+2x-5=3+12-4x 9x-5=15-4x 9x+4x-5=15-4x+4x 13x-5=15 13x-5+5=15+5 13x=20 13x/13=20/13 x=20/13

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

8x + 15

Related questions

x = 3

If: 20x+5y = 15 Then: y = -4x+3

12 (x is -3)

y = 4x-3

It is: x = 5/3 and x = -3

Without an indication of the equals sign, this is not an equation.

7x-5+2x=3-4x+12 7x+2x-5=3+12-4x 9x-5=15-4x 9x+4x-5=15-4x+4x 13x-5=15 13x-5+5=15+5 13x=20 13x/13=20/13 x=20/13

4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.

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

8x + 15

x=3

3+6x = 4x+9 6x-4x = 9-3 2x = 6 x = 3