Phillip R. answered • 08/21/14
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3 + 5x + 8 = 40x + 67
-35x = 56
x = -56/35 = -8/5
Dynasty M.
asked • 08/21/146[3-(-5x-8)]=240x+402
please solve
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3 Answers By Expert Tutors
Ms. C. W. answered • 08/22/14
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Tutor for Elementary, Jr. High, and High School Math & English.
6[3-(-5x-8)]=240x+402
6[3+5x+8]=240x+402
6[5x+11]=240x+402
30x+66=240x+402
-240x+30x=402-66
-210x=336
x=-336/210=>-1 13/105
Ms. C. W.
There was an error in my previous calculation.
x=-336/210=>-168/105=>-1 63/105
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08/22/14
John B. answered • 08/21/14
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Just expand, combine like terms and simplify.
6(3-(-5x-8)) = 240X+402
6(3+5x+8) = 240X+402
18+30X+48 = 240X+402
30X+66 = 240X+402
- 240X- 66 -240X - 66
-210X = 336
X = -16
6(3-(-5x-8)) = 240X+402
6(3+5x+8) = 240X+402
18+30X+48 = 240X+402
30X+66 = 240X+402
- 240X- 66 -240X - 66
-210X = 336
X = -16
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Phillip R.
08/22/14