rcolavit
13.09.2019 •
Mathematics
#3. 11x + 1 = -1 + x
#4. 2| x — 3 | — 5 = 7
#5. | 2x — 19 | = 4x +1
#6. -2 + 5x — 7 = 3x — 9 + 2x
#7. 3(x + 4) — 1 = -7
#8. |20 + 2x| = |4x + 4|
#9. 1/3(6x + 12) — 2(x — 7) = 19
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Ответ:
The answer is true.
Complementary = 90
Supplementary = 180