Question

1)5в+7в 2)5.4х+х 3)-5а-8а

Answer 1

1) 12в 2)6,4x 3)-13a

Answer 2

1) 5в + 7в = 12в

2) 5,4x + x = 6,4x

3) - 5a - 8a = - 13a

Answer 3

It appears you want to simplify these algebraic expressions. Here are the simplifications for each expression:

1. 5в + 7в: When you add two like terms with the same variable, you simply add their coefficients: 5в + 7в = (5 + 7)в = 12в

So, the simplified expression is 12в.

2. 5.4х + х: Similar to the previous expression, you add the coefficients of the like terms: 5.4х + х = (5.4 + 1)х = 6.4х

So, the simplified expression is 6.4х.

3. -5а - 8а: Again, add the coefficients of the like terms: -5а - 8а = (-5 - 8)а = -13а

So, the simplified expression is -13а.