Ответ:
3(x+2) =48
3x+6=48
3x=42
x=14
3(х+2)-4=44
3(х+2)=44+4
х+2=48÷3
х+2=16
х=16-2
х=14
__________
3(14+2)-4=44
3×16-4=44
48-4=44
44=44
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Ответ:
3(x+2) =48
3x+6=48
3x=42
x=14
Ответ:
3(х+2)-4=44
3(х+2)=44+4
х+2=48÷3
х+2=16
х=16-2
х=14
__________
3(14+2)-4=44
3×16-4=44
48-4=44
44=44