Need help on this one pls

The value of x is 18°.

Step-by-step explanation:

If I remember correctly, I believe the sum of opposite angles 89° and 51° are also the sum of the angles (5x - 8)° and (3x + 4)°. So, going off that..

If 89° + 51° = 140°; then (5x - 8)° + (3x + 4)° = 140.

(5x - 8)° + (3x + 4)° = 140

8x - 4 = 140°                               Combine like terms

   + 4   +   4                                Add 4 to both sides

8x = 144

8        8                                       Divide both sides by 8

x = 18°

Hope this helps,

~ Nicki ~

oof cheaters cheat because they’re lazy that’s why i cheat xd

: )

step-by-step explanation:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.