4 2. (100 + x) = 400 200 + (b + 400) = 1 000200*20*1080700:y - 2 = 5(800 + x) - 300 =...

Question

4 2. (100 + x) = 400 200 + (b + 400) = 1 000200*20*1080700:y - 2 = 5(800 + x) - 300 = 600o - - 500-600 помоги пожалуйста ​

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Answer 1

200+2х=400

2х=400-200

2х=200

х=200÷2

х=100

Answer 2

200+2x=400
2x=400-200
2x=200
x=200:2
x=100