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3| -8x | +8 = 80
helpp

2 Answers

4 votes

Answer:

x = 3 , x = -3

Explanation:

3 | -8x | + 8 = 80

3 | -8x | = 72

Solve the negative and positive case:

Negative-

-3 ( -8x ) = 72

24x = 72

x = 3

Positive-

3 (-8x ) = 72

-24 = 72

-x = 3

x = -3

User Sever Van Snugg
by
4.3k points
1 vote

Answer:

x=8.625

Explanation:

ok so the lines mean absolute value so its actuall positive soyou get 3+8x+8=80

so add 3 and 8 to get 11+8x=80

subtract 11 to get 8x=69

then divide it by 8 so x is by itself

x=8.625 hope this helped :)

User Mathias Stavrou
by
4.2k points