When 31 times a number is increased by 40, the answer is the same as when 200 is decreased by the number

The number is 5.

n - a number

31 times a number is increased by 40 is equal 200 is decreased by the number

31n + 40 = 200 - n      subtract 40 from both sides

31n = 160 - n      add n to both sides

32n = 160     divide both sides by 32

n = 5

answer is 144

step-by-step explanation:

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol