1. 5x + 2y- 3x + y =

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2. -7a + 2b + 6b – 2a =
3. a – 4b + 7 – 3a + 8b =
4. 4x² + 3x² =
5. x² + 9x – 8x² – x=
6. -3x² – 7x + 3x² +2x =
7. 2x² – 6x – 2 -3x =
8. x² – 8x + 4 – 3x² + 8x =

1. 5x + 2y- 3x + y =

Penjelasan dengan langkah-langkah:

1. 5x + 2y- 3x + y

= (5 – 3)x + (2 + 1)y

= 2x + 3y

2. -7a + 2b + 6b – 2a

= (-7 – 2)a + (2 + 6)b

= -9a + 8b

3. a – 4b + 7 – 3a + 8b

= (1 – 3)a – 4b + 8b

= -2a + 4b

4. 4x² + 3x²

= (4 + 3)x²

= 7x²

5. x² + 9x – 8x² – x

= (1 – 8)x² + (9 – 1)x

= -7x² + 8x

6. -3x² – 7x + 3x² +2x

= (-3 + 3)x² – 7x + 2x

= -5x

7. 2x² – 6x – 2 -3x

= 2x² + (-6 – 3)x – 2

= 2x² – 9x – 2

8. x² – 8x + 4 – 3x² + 8x

= (1 – 3)x² + (-8 + 8)x + 4

= -2x² + 4

1).5x + 2y - 3x + y \ 5x - 3x + 2y + y \ 2x + 3y \ \ 2). - 7a + 2b + 6b - 2a \ - 7a - 2a + 2b + 6b \ - 9a + 8b \ \ 3).a - 4b + 7 - 3a + 8b \ a - 3a - 4b + 8b + 7 \ - 2a + 4b + 7 \ \ 4).4 {x}^{2} + 3 {x}^{2} = 7 {x}^{2} \ \ 5). {x}^{2} + 9x - 8 {x}^{2} - x \ {x}^{2} - 8 {x}^{2} + 9x - x \ - 7 {x}^{2} + 8x \ \ 6). - 3 {x}^{2} - 7x + 3 {x}^{2} + 2x \ - 3 {x}^{2} + 3 {x}^{2} - 7x + 2x \ - 5x \ \ 7).2 {x}^{2} - 6x - 2 - 3x \ 2 {x}^{2} - 6x - 3x - 2 \ 2 {x}^{2} - 9x - 2 \ \ 8). {x}^{2} - 8x + 4 - 3 {x}^{2} + 8x \ {x}^{2} - 3 {x}^{2} - 8x + 8x + 4 \ - 2 {x}^{2} + 4