Question

1) 20-4x=8(3x+2,5)-282)4x+9=5(2x-7)-6

Answer 1

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Answer 2

1) 20-4x=8*3x+8*2,5-28
20-4x=24x+20-28
-4x-24x=-20+20-28
-20x=-28
x=-28/20

Answer 3

1. 20 - 4x = 8(3x + 2.5) - 28

First, distribute the 8:

20 - 4x = 24x + 20 - 28

Simplify:

20 - 4x = 24x - 8

Add 4x to both sides:

20 = 28x - 8

Add 8 to both sides:

28 = 28x

Divide both sides by 28:

x = 1

Therefore, the solution is x = 1.

2. 4x + 9 = 5(2x - 7) - 6

First, distribute the 5:

4x + 9 = 10x - 35 - 6

Simplify:

4x + 9 = 10x - 41

Subtract 4x from both sides:

9 = 6x - 41

Add 41 to both sides:

50 = 6x

Divide both sides by 6:

x = 8.333...

Therefore, the solution is x = 8.333... (or approximately x = 8.33).