Respuesta :

2x +40=4x-10
-2. +10. -2x. +0
50=2x
/2. /2
25=x

Answer:

Step-by-step explanation:

4c+c=90

5c=90

c=90/5=18

∠WMJ=c=18°

∠QMX=4c=4×18=72°

2.

4x+10=2x+40

4x-2x=40-10

2x=30

x=15

vertical angle=2×15+40=70°

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