Question

6(x + 4) - 3(x - 5) =

4 - (x + 19) - 3(x - 5) =

5x + 2(x + 3) - (x - 7) =

15 - 5(x + 5) + (x + 10) =

(2x + 8) + 10x - 4(3x - 2) =

Answer 1

Відповідь:

1) 6(x + 4) - 3(x - 5) = 6x + 24 -3x + 15 = 3x+39

2) 4 - (x + 19) - 3(x - 5) = 4 - x - 19 - 3x + 15 = -4x

3) 5x + 2(x + 3) - (x - 7) = 5x + 2x + 6 - x + 7 = 6x + 13

4) 15 - 5(x + 5) + (x + 10) = 15 - 5x - 25 + x + 10 = -4x

5) (2x + 8) + 10x - 4(3x - 2) = 2x + 8 + 10x - 12x + 8 = 16

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