Question

2 (×+7)+4× в это ×=5 9 (3-у)+15 в это у=2 1,5 (у+9)+3,5 в это у=4 3/4 (×-6)+2 в это ×=8

Answer 1

2(5+7)+4=24+4=28
9(3-2)+15=9+15=24
1,5(4+9)+3,5=19,5+3,5=23
3/4=0,75(8-6)+2=1,5+2=3,5

Answer 2

Let's solve each of the equations step by step:

1. 2(× + 7) + 4× = 5 Substitute × with 5: 2(5 + 7) + 4 × 5 = 5 2(12) + 20 = 5 24 + 20 = 5 44 = 5 This equation is not possible since 44 is not equal to 5. There might be a mistake in the equation.

2. 9(3 - у) + 15 = у Substitute у with 2: 9(3 - 2) + 15 = 2 9(1) + 15 = 2 9 + 15 = 2 24 = 2 This equation is not possible since 24 is not equal to 2. There might be a mistake in the equation.

3. 1.5(у + 9) + 3.5 = у Substitute у with 4: 1.5(4 + 9) + 3.5 = 4 1.5(13) + 3.5 = 4 19.5 + 3.5 = 4 23 = 4 This equation is not possible since 23 is not equal to 4. There might be a mistake in the equation.

4. (3/4)(× - 6) + 2 = 8 Substitute × with 8: (3/4)(8 - 6) + 2 = 8 (3/4)(2) + 2 = 8 (3/4) * 2 + 2 = 8 6/4 + 2 = 8 3/2 + 2 = 8 1.5 + 2 = 8 3.5 = 8 This equation is not possible since 3.5 is not equal to 8. There might be a mistake in the equation.

Based on the calculations, it seems that there are mistakes in all the provided equations. Please double-check the equations and ensure they are correctly represented.