Study guides

☆☆

Q: What is 3x - 4 equals 7?

Write your answer...

Submit

Still have questions?

Continue Learning about Other Math

x=4 or x=-4

6x-7 = 3x+5 6x = 3x+12 (subtracting -7) 3x=12 (subtracting 3x) x=4 (dividing by 3)

y = 3x = 12y = 12

7

y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1

Related questions

if 3x+7 = 3 then 3x = 3-7 3x = -4 then, x = -4/3

3x + 4= 7 3x= 7-4 3x/3 = 3/3 x=1

7

7

7

7

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

x=4 or x=-4

3x+7=19 3x=12 minus 7 from both sides x=4 divide by three on both sides leaving just what x equals

(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.

x = -7

{-4,-5}

People also asked