Question

Resolva Por favor!

2x+40=180

4x+80+100=320

Answer 1

2x+40=180
2x=180-40
2x= 140
x = 140/2
x = 70


4x+80+100=320
4x=320-80-100
4x=140
x = 140/4
x = 35

Answer 2

2 x + 40 = 180

2 x = 180 - 40

2 x =140

x = 140 ÷ 2

x = 70

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4 x + 80 + 100 = 320
     
4 x = 320 - 100 - 80
     
4 x = 140
     
x=140 ÷ 4 
     
x=35