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Levart [38]
4 years ago
14

I need to show the work. Please help

Mathematics
2 answers:
Rama09 [41]4 years ago
8 0

Answer:

18

Step-by-step explanation:

125 = 7x - 1 ...... because if the two lines are parallel alternate interior angles are congruent

125 + 1 = 7x

126 = 7x

\frac{126}{7}  =  \frac{7x}{7}

x = 18

hope it helps

for any question comment me ❤❤

Genrish500 [490]4 years ago
7 0
The angles are supplementary which means that (7x-1)+125 = 180 so to go this, simply isolate the variable by doing the opposite operation on the constants to make zero pairs and cancel them out. So 7x-1(+1)+125(-125) makes 7x=185(+1 & -125) which is 61. So then you have 7x=61 and to find x just divide this by both sides to get x about 8.7
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