Ответ:
1)x=25
2)x=2
Объяснение:
1)2x+5/10 - 3x-5/20=2
2(2x+5)-(3x-5) =40
4x+10-3x+5=40
x+15=40
x=40-15
x=25
2)(4x+1)(x+5)-(2x+1)(2x-3)=58
4x2+20x+x+5-(4x2-6x+2x-3) =58
4x2+20x+x+5-(4x2-4x-3)=58
4x2+20x+x+5-4x2+4x+3=58
25x+8=58
25x=58-8
25x=50
x=50:25
x=2
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Answers & Comments
Ответ:
1)x=25
2)x=2
Объяснение:
1)2x+5/10 - 3x-5/20=2
2(2x+5)-(3x-5) =40
4x+10-3x+5=40
x+15=40
x=40-15
x=25
2)(4x+1)(x+5)-(2x+1)(2x-3)=58
4x2+20x+x+5-(4x2-6x+2x-3) =58
4x2+20x+x+5-(4x2-4x-3)=58
4x2+20x+x+5-4x2+4x+3=58
25x+8=58
25x=58-8
25x=50
x=50:25
x=2