10-2(2х-7) -2(4+3х)+8х 28х-5(6х-0.2) 4х+(8-6х) - вопрос №684068110227243828560248613492611 от joseska228 03.01.2022 09:14

Question

Математика: 10-2(2х-7) -2(4+3х)+8х 28х-5(6х-0.2) 4х+(8-6х) -13х-(4-9х) 2(6++11)

joseska228 · Answer

-10-2(2х-7)=-10-4x+14=4-4x.-2(4+3х)+8х=-8-6x.28х-5(6х-0.2)=28x-30x+1=-2x+1.4х+(8-6х)=4x+8-6x=-2x+8.-13х-(4-9х)=-13x-4-9x=-22-4.2(6+7х)-(12х+11)=12+14x-12x+11=23+2x....