Question

1.2а-а+b-2.1b памагіте​

Answer 1

Ответ:

-0.8а-1.1b

Объяснение:

1.2а-а+b-2.1b=-0.8а-1.1b

1.2а и -а, b и -2.1b подобные слагаемые

Answer 2

To solve the expression 1.2a - a + b - 2.1b, we can simplify it by combining like terms. Let's break it down step by step:

1. Combine the terms with the same variable, 'a': - We have 1.2a - a. To combine these terms, we subtract the coefficients: 1.2 - 1 = 0.2. - So, 1.2a - a simplifies to 0.2a.

2. Combine the terms with the same variable, 'b': - We have b - 2.1b. To combine these terms, we subtract the coefficients: 1 - 2.1 = -1.1. - So, b - 2.1b simplifies to -1.1b.

Now, let's put the simplified terms together:

0.2a - 1.1b

Therefore, the simplified expression for 1.2a - a + b - 2.1b is 0.2a - 1.1b.

I hope this helps! Let me know if you have any further questions.