coryintheswamp
coryintheswamp coryintheswamp
  • 14-02-2018
  • Mathematics
contestada

help me please asap :D

help me please asap D class=

Respuesta :

PeytonBrainly
PeytonBrainly PeytonBrainly
  • 14-02-2018
(a)
3x + 30 + x - 5 + 35 = 180
4x + 60 = 180
4x + 60(-60) = 180(-60)
4x = 120
4x/4 = 120/4
x = 30

(b)
x - 5
(30) - 5
25
3x + 30
3(30) + 30
90 + 30
120
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