2,7х – 4,2 = 0,7х +1,8
2.7x-0.7x=1.8+4.2
2x=6
x=6:2
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2,7х – 4,2 = 0,7х +1,8
2.7x-0.7x=1.8+4.2
2x=6
x=6:2
x=3
2x=6. /2
x=3
Это ответ