Question

Б) 4,7у-(2,5у+12,4)=1,9

Answer 1

Б) 4,7у-(2,5у+12,4)=1,9
4,7у-2,5у-12,4=1,9
2,2у=1,9+12,4
2,2у=14,3
у=14,3:2,2
у=6,5.

Answer 2

4,7у-(2,5у+12,4)=1,9
4,7у-2,5у+12,4=1,9
у(4.7-2.5+12.4)=1.9
14.6у=1.9
у=1.9:14.6
у=0.1301...
Если честно,то я не уверена)))

Answer 3

To solve the equation 4.7y - (2.5y + 12.4) = 1.9, follow these steps:

Step 1: Distribute the negative sign across the parentheses: 4.7y - 2.5y - 12.4 = 1.9

Step 2: Combine like terms on the left side of the equation: (4.7y - 2.5y) - 12.4 = 1.9 (4.7 - 2.5)y - 12.4 = 1.9 2.2y - 12.4 = 1.9

Step 3: Move the constant term to the right side by adding 12.4 to both sides: 2.2y - 12.4 + 12.4 = 1.9 + 12.4 2.2y = 14.3

Step 4: Solve for y by dividing both sides by 2.2: (2.2y)/2.2 = 14.3/2.2 y = 6.5

So the solution to the equation is y = 6.5.