Ответ:
Объяснение:
1. 5(х+4)+3(2-х)= 5х+20+6-3х= 2х+26
2. 7х-2(х-1)+4х= 7х-2х+2+4х= 9х+2
3. 4(5-х)-(2х+3)+7= 20-4х-2х-3+7= 24-6х
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Ответ:
Объяснение:
1. 5(х+4)+3(2-х)= 5х+20+6-3х= 2х+26
2. 7х-2(х-1)+4х= 7х-2х+2+4х= 9х+2
3. 4(5-х)-(2х+3)+7= 20-4х-2х-3+7= 24-6х