Автор - mykarkarlch79

sooooooooos!!!!!! please ​

Ответ

Автор - lolipopilol

Объяснение:

3.

а) 6xz * 2yz = 12xyz²

б) 8a + (3 - a) - (4a + 5) = 8a + 3 - a - 4a - 5 = 3a - 2

4.

a) 1/8x = -4

x= -4/(1/8)

x= -32

б) 4х - 4 = 7х + 2

-3х + 6

х=-2

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