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skad [1K]
3 years ago
6

Please answer these Algebraic Expression questions so I can check my work

Mathematics
1 answer:
kobusy [5.1K]3 years ago
3 0

Addition:

1) a + 8

2) 4 + c

3) m + 16

4) f + 20

5) T + r

Subtracting:

1) 23 - p

2) 550 - h

3) 25 - W

4) 7 - j

5) M - x

6) l - 12

Multiplication:

1) 4x

2) 20b

3) 2x

4) 3/4m

5) 7x

Division:

1) r/19

2) x/d

3) c/d

4) p/g

Mixed Practice: using x for the number unless specified

1) 1/4d + 8

2) 2x - 5

3) 7 + xy

4) 1/2x

5) m + 6n

6) m + n

7) 34/x

8) 20 - x/y

9) 6(x - 3)

10) 2(x + 8)

____________________________________________________________

1) n + 4

2) 4n

3) n - 4

4) n + 4

5) n - 4

6) 4n

7) 5n + 6

8) 5n - 6

9) 2n - 9

10) n/7

11) n(n + 7)

12) n(n - 7)

13) 2n - 8 = 14

14) 3n - 1 = 7

15) 5n + 4 = n - 2

16) n - 10 = 6n + 3

17) 2(n + 3) = 20

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Let f(x)=2x+2. Solve f^-1(x) when x=4
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F⁻¹(x) stands for the invers of function f(x). The inverse of f(x) is equal to x. We need to solve for x.

solve for x
f(x) = 2x + 2
2x + 2 = f(x)
2x = f(x) - 2
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f⁻¹(4) = \dfrac{4-2}{2}
f⁻¹(4) = \dfrac{2}{2}
f⁻¹(4) = 1
When x = 4, the value of f⁻¹(x) is equal to 1
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