Q: 3x plus 7 equals 2x minus 5?

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3x - 2x + 4 = 0 3x - 2x = -4 x = -4

An equation where x equals 3.

6 - x + 7 - 3x - 5 = -2x - 10 ∴ x + 3x - 2x = 6 + 7 - 5 + 10 ∴ 2x = 18 ∴ x = 9

3x=2x-12x=-12

3x2 + 2x - 8 = 0 is a quadratic equation.

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3x - 2x + 4 = 0 3x - 2x = -4 x = -4

An equation where x equals 3.

2x+3y=13 3x-y=3 x=2

3x=2x-12x=-12

6 - x + 7 - 3x - 5 = -2x - 10 ∴ x + 3x - 2x = 6 + 7 - 5 + 10 ∴ 2x = 18 ∴ x = 9

X=7

3x2 + 2x - 8 = 0 is a quadratic equation.

2x+3x = 5x

-3X

If: 2x+5y = 2 and -3x-y = -3Then it works out that: x = 1 and y = 0

-4x-1-3x-4+5 = -7x-1-2x+1+6 -7x = -9x+6 2x = 6 x = 3

x = 15