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Q: 3x plus -5 equals 7

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2x2 equals 5

if 3x+5=x+19 then x=7

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

3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.

x2 + 3x + 7 = 5 ∴ x2 + 3x + 2 = 0 ∴ (x + 1)(x + 2) = 0 ∴ x ∈ {-2, -1}

3x - 8 = 7 so x = 5

3x+7=2x-5 x=-12

x=-5

x = 5

(-1, 5)

(5, 1)

(-1, 5)

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

{-4,-5}

x=7

x = 27

x = 7

x = 7

2x+12-3x = 5 2x-3x = 5-12 -x = -7 x = 7

3x + 8 = -7 Therefore, 3x = -15 x = -5

-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5

x + 2x + 5 = x +19 3x + 5 = x +19 3x - x = 19 - 5 2x = 14 x = 7

3x plus 9 equals what?

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

x = 3/5 and y = 1/5