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-1/2 (10x+6)=33 solve for X

User Akourt
by
3.6k points

2 Answers

2 votes

Answer:

x=-6

Explanation:

-1/2(10x+6)=33

-5x+3=33

-5x=30

x=-6

User Sihrc
by
3.6k points
0 votes

Answer:

x = (-36)/5

Explanation:

Solve for x:

(-10 x - 6)/2 = 33

Multiply both sides of (-10 x - 6)/2 = 33 by 2:

(2 (-10 x - 6))/2 = 2×33

(2 (-10 x - 6))/2 = 2/2×(-10 x - 6) = -10 x - 6:

-10 x - 6 = 2×33

2×33 = 66:

-10 x - 6 = 66

Add 6 to both sides:

(6 - 6) - 10 x = 6 + 66

6 - 6 = 0:

-10 x = 66 + 6

66 + 6 = 72:

-10 x = 72

Divide both sides of -10 x = 72 by -10:

(-10 x)/(-10) = 72/(-10)

(-10)/(-10) = 1:

x = 72/(-10)

The gcd of 72 and -10 is 2, so 72/(-10) = (2×36)/(2 (-5)) = 2/2×36/(-5) = 36/(-5):

x = 36/(-5)

Multiply numerator and denominator of 36/(-5) by -1:

Answer: (-36)/5

User Unique
by
3.3k points