Q: 7x plus 16 equals 3x plus 4?

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7x-4020+3x= 7x+-4020+3x= 7x+3x+-4020= 10x+-4020= 10x-4020

(7x + 4) = (3x + 7) Subtract (3x + 4) from both sides of the equation. (7x + 4) - 3x - 4 = (3x + 7) - 3x - 4 4x = 3 x = 3/4 Check: (7x + 4) = 7 (3/4) + 4 = (21/4) + 4 = (21/4) + (16/4) = 37/4 (3x + 7) = 3 (3/4) + 7 = (9/4) + 7 = (9/4) + (28/4) = 37/4 Yay.

If: 3x-3 = 7x+21 Then: x = -6

x2+7x=-2x2+6 3x2+7x-6=0 (3x-2)(x+3)=0 3x-2=0 or x+3=0 x=2/3 or x=-3

If: 4x+3x = 35Then: 7x = 35So: x = 35/7 => x = 5

Related questions

x=6

-46 = 3x + 7x

3+3x+7x=13 3x+7x=10 10x=10 x=1

8+7x = 20+3x 7x-3x = 20-8 4x = 12 x = 3

3x + 4x = 847x = 84divide both sides by 7x = 12

7x = 3x - 12 4x=-12 x=-3

7x - 9 = 3x + 5 7x - 3x - 9 = 5 7x - 3x = 5 + 9 4x = 14 x = 14/4

simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2

x=-4.6

No, that's not correct.-3x + 4x = x

7x-3=3x+8 7x-3x=8+3 4x=11 x=11/4=2.75

7x+6 = -3x-24 7x+3x = -24-6 10x = -30 x = -3