Study guides

☆☆

Q: How do you simplify - 3x 8 5x 7?

Write your answer...

Submit

Still have questions?

Related questions

The value of x is: x=7/8. Work: 5x-3=4-3x +3 +3 ________ 5x=7-3x +3x +3x ________ 8x=7 /8 /8 ________ x=7/8

3x = 7-5x 8x=7 x = 7/8 x = 0.875

32-5x=3x+8 32-5x-8=3x+8-8 24-5x=3x 24-5x+5x=3x+5x 24=8x x=24/8=3

9x+7

x2 + 3x - 7 = 5x + 8; thus, x2 + 3x - 7 - 5x - 8 = x2 - 2x - 15 = (x - 5)(x + 3) = 0. Therefore the solution is x = 5 or -3.

The answer is -8.

If: 3x+8-x = 5x-4 Then: x = 4

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

5x + 5 = 8 -3x 5x = 3 -3x 8x = 3 x = 0.375

3x + 8

5x + 8 = 3x + 25x - 3x = 2 - 82x = -6x = -6/2x = -3Check:5(-3) + 8 = 3(-3) + 2-15 + 8 = -9 + 2-7 = -7

3x+2y=20 5x-2y=1 (3x+2y) + (5x-2y)= 20+1 3x+5x= 21....... 8x=21.........x=2 5/8 Subsitute x=3(2 5/8)+ 2y=20........... 7 7/8 +2y=20.........2y= 20- 7 7/8....... y=6 1/16

People also asked