Hey! Your answer would be 0.0875L
1.

or if you mean (3x^3+5x^2+3x-7)+(8x-6x^2+6):

2.

Step-by-step explanation:
Bringing like terms on one side
2 + 7 - 5 = 2x - 4x
9 - 5 = - 2x
4 = - 2x
4/ - 2 = x
- 2 = x
Answer:
The force exerted by the weight lifter is 81.7 N.
Step-by-step explanation:
We can find the force exerted by the weight lifter using the definition of work:
(1)
Where:
F: is the force
d: is the displacement
We have W = 9.8 J of work and d = 0.12 m, so by solving equation (1) for F we have:

Therefore, the force exerted by the weight lifter is 81.7 N.
I hope it helps you!
Distribute the ( ).....get -6y -10= -4
Add 10 on both sides, get -6y=6. Divide by-6, get y of -1