Question

решите всё всё пж пж пж

fe695750bbef15cbbb2626cc03d6fd79.docx

Answer 1

1. 5x + 4 = x + 12

4х=8

х=2

__________

2. 13 – 5y = 8 – 2y

-3у=-5

у=5/3

_________

3. 5x + (3x – 7) = 9

8х=16

х=2

________

4. 3y – (5 – y) = 11

4у=16

у=4

_____

5. (7a + 1) – ( 6a + 3) = 5

а=7