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Answered

1. (7x)
2. (2х – 5)
128a4
3.
2а
4.
| /18р
5.
V320Ь?
ѕь​

Sagot :

Cloeacirejlegapi2881go

Answer:

а) 9x-4(x+5)-1=7(x-3)-2x

9x-4x-20-1=7x-21-2x

9x-4x-20-1-7x+21+2x

0=0 x-

6) -2(2a+5)=5(2a-9)-7(2a-5)

4a-10+10a-45-14a+35

0=-20

Step-by-step explanation:

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