jayybrain6337
04.09.2020 •
Mathematics
7(x+3)=-2(x-5)
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Ответ:
x = -11/9
Step-by-step explanation:
7(x+3)=-2(x-5)
Distribute
7x+21 = -2x+10
Add 2x to each side
7x+21 +2x = -2x+10+2x
9x +21 = 10
Subtract 21 from each side
9x +21-21 = 10-21
9x = -11
Divide each side by 9
9x/9 = -11/9
x = -11/9
Ответ:
Reason 3: Congruent supplements theorem
Statements:
Statement 4: Angle 1 is congruent with angle 2
Option D:
Reason 3: Congruent supplements theorem.
Statement 4: Angle 1 is congruent with angle 2