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Q: Solve 2x plus 3 equals 7?

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x = 3 and y = 3 Form a simultaneous equation and solve by elimination.

3x+4 = 2x-3 3x-2x = -3-4 x = -7

2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9

2x + 3 = 9x Subtract 2x from both sides: 3 = 7x Divide both sides by 7: 3/7 = x

2x + 2/3= 5/3 2x= 3/3 2x=1 x=1/2

Related questions

3

4x + 3 = -3 + 2x + 14 2x + 3 = -3 +14 2x + 3 = 11 2x = 8 x=4

2x+3 = -11 2x = -11-3 2x = -14 x = -7

x = 3 and y = 3 Form a simultaneous equation and solve by elimination.

3x+4 = 2x-3 3x-2x = -3-4 x = -7

(3,3)

2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9

3x-2 = 2x+3 3x-2x = 3+2 x = 5

2x + 3 = 9x Subtract 2x from both sides: 3 = 7x Divide both sides by 7: 3/7 = x

2x + 3 = x 2x + 3 - 3 = x - 3 2x = x - 3 2x - x = x - 3 - x x = -3

2x+3=9x 3=9x-2x 3=7x x=3/7

2x + 2/3= 5/3 2x= 3/3 2x=1 x=1/2

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