Упростите выражени:
3) 0.1 (2 х + 55)-3 (1.5 + 2.2х);
4) 3.2 (х - 5) - 6 (0.5х - 1)
3) 0.1 (2 х + 55)-3 (1.5 + 2.2х);
4) 3.2 (х - 5) - 6 (0.5х - 1)
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3) = 0,2х+5,5-4,5-6,6х=1-6,4х4) = 3,2х-16-3х+6=0,2х-10