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Q: How to slove 4x plus 7 31?

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4x + 7 = 6x -7 14=2x so x = 7 (plus a negative # is simply - that number)

4x plus 7

If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7

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

4X - 7 = 31 add 7 to each side 4X - 7 + 7 = 31 + 7 4X = 38 divide both sides integers by 4 (4/4)X = 38/4 X = 38/4 = 19/2 --------------------------reduced, check in original equation 4(19/2) - 7 = 31 76/2 - 7 = 31 38 - 7 = 31 31 = 31 -----------checks

4x+7=9x+7 -5x=0 x=0

-3

5y = 4x - 35 Divide each side of the equation by 5 : y = 4/5 x - 7

5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5

4x-9(x plus 1)7-5x?

If 4x + 7 = 3... then x must equal -1

This would simplify as 4x-5

6x - 12 + 4x + 5 = 06x + 4x = 12 - 510x = 7x = 7/10

4x + 3, where x = 7 4(7) + 3 = 28 + 3 = 31

(2x + 1)(4x + 7)

25

its 4x +7.....since the 7 doesn't have an x like the 4 you can't add them together..:D

If you mean 4x+y = 7 then y = -4x+7 which is a straight line equation whereas -4 is the slope and 7 is the y intercept

7x + 6 - 4x = 5 + 2x + 7 subtract 6 from both sides and combine the 5 and 7 on the right: 7x - 4x = 2x + 6 subtract 2x from both sides and combine the 7x and -4x on the left: x = 6

4x - 3x + 7 = -3 x = -3 - 7 = -10

19 (7 + 12 = 4x - 3x)

Yes, y = 4x + 7 is a linear equation.

If you mean 49+6 = 4x-7 then the value of x is 15.5

x+5+3x-7+9x+3-4x Collect like terms: 9x+1

7