Q: What does x equal in 3x plus 7 equals 4x-12?

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

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

7.5

x = -11

Ten. That means 3x equals 30, and 30 divided by three is ten.

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

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

7.5

x = -11

3x plus -5 equal 7. so x is 4 so 3times 4 is 12-5 will equal 7.

Ten. That means 3x equals 30, and 30 divided by three is ten.

If: 3x-7 = 5x+13 Then: x = -10

Well lets see: 2y = 6x+8 y=3x+4 does not equal y=3x+6 So they are not the same.

no

I think 144

Both equations are equal and so: 3x+1 = 2x+3 3x-2x = 3-1 x = 2 and by substituting y = 7

10x + 5 which is also equal to 5(2x + 1)