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Q: 2x plus y equals 8 and x plus y equals 6?

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5 - 2x = 8 x = -1 and 1/2 4x = 6 x = 6/4 or 3/2

2x+8 = 6 2x = 6-8 2x = -2 x = -1

5x-8= -2x+6(+8 = +8)5x=-2x+14(+2x = +2x)7x=14x=14

x=5

This is not Calculus. 6 + (2*4 = 8) = 14.

X=7

2x + 5 = 13 2x = 8 2x/2 = 8/2 x=4

no x would be 0.5 because two times 0.5 is 1 ( 2x ) and then add 7 equals 8 ( plus seven equals 8 )

3x+2=2x+8x=63x+2 = 2x + 8; first subtract 2x from both sidesx+2=8; then subtract 2 from both sidesx=6

3x + 8 = 2x +28 3x - 2x = 28 - 8 x=20

-7 +2x = x + 8 2x - x = 7 + 8 x = 15

6x - 8 + 2x - 5 = 7 - 2x ?

2x + 5 = 13 2x = 8 x = 4

8

Y = 1/2x + 2

-5x+3(x+8)=16-2x

The answer to 1 over 2x plus 13 equals 9 is x equals -8.

Simplify 4x + 3 = 2x + 8 2x = 5 x =2½

8

y=6x-16 y=-2x+8

Since 7x + 13x +2x + 8 is an expression (there is no equal sign), there is no answer as to what x equals. However, this expression can be simplified to 22x + 8.

(x + 2x + 3x) - 8 = 106x - 8 = 10Add 8 to each side:6x = 18Divide each side by 6:x = 3

(4x - 8) + 2x = 6 + x4x - 8 + 2x = 6 + x6x - 8 = 6 + xSubtract x from each side:5x - 8 = 6Add 8 to each side:5x = 14Divide each side by 5:x = 14/5 = 2-4/5 = 2.8

X equals to 8

5x+(6-3x)+8=5x+6-3x+8=2x+14 2x + 14