Respuesta:
1 ;
11x + 12 = 34
11x = 34 - 12
11x = 22
x = 22 ÷ 11
x = 2
2;
23x - 42 - 17x = 90 - 6x - 12
23x + 6x - 17x = 90 + 42 - 12
29x - 17x = 90 + 42 - 12
12x = 120
x = 120 ÷ 12
x = 10
espero averte ayudado en algo :'v
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Respuesta:
1 ;
11x + 12 = 34
11x = 34 - 12
11x = 22
x = 22 ÷ 11
x = 2
2;
23x - 42 - 17x = 90 - 6x - 12
23x + 6x - 17x = 90 + 42 - 12
29x - 17x = 90 + 42 - 12
12x = 120
x = 120 ÷ 12
x = 10
espero averte ayudado en algo :'v