Question

(−7) + (−2) = (−2) + (−7) solve.​

Answer 1

Answer:

+ – = –

Therefore –7–2= –9 = –2 +( –7)= –2–7= –9

So –9= –9

I hope that you have understood

Answer 2

Answer:

(−7) + (−2) = (−2) + (−7)

-9 = -9

I think there is nothing to "solve" here.

The equation here is a fundamental equation

2x + 7/3 - 3 (6x-3) /15

10x + 35/15 - 18x + 9/15

-8x+ 44