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WILL GIVE BRAINLIEST
Use your knowledge about parentheses and substitution to solve the following:

q = 1; r = 2; s = 3; t = 4; x = 5; y = 6

7. 2(x+4) + 10 =

8. 3(4x) + 4 =

9. 10(xy) =

10. 2(x + y) =

11. 3(rs) + 4(x)

12. 2(q) + 2(x + t) =

13. 6(3t + 4s) =

14. 10(10x) + 10y =

15. x(xy) =

16. r(s)(t) =

17. (r)(s)(t)(x)(y) =

18. 6(2x + 3Y) =

Sagot :

Answer(s):

  • 7. 28
  • 8. 64
  • 9. 300
  • 10. 22
  • 11. 38
  • 12. 20
  • 13. 144
  • 14. 560
  • 15. 150
  • 16. 24
  • 17. 720
  • 18. 168

Step-by-step Solution:

Given values:

  • q = 1
  • r = 2
  • s = 3
  • t = 4
  • x = 5
  • y = 6

__________________________________________________

Question 7

  • 2(x + 4) + 10
  • => 2(5 + 4) + 10
  • => 2(9) + 10
  • => 28

Question 8

  • 3(4x) + 4
  • => 3{4(5)} + 4
  • => 3{20} + 4
  • => 60 + 4
  • => 64

Question 9

  • 10(xy)
  • => 10(5 x 6)
  • => 10(30)
  • => 300

Question 10

  • 2(x + y)
  • => 2(5 + 6)
  • => 2(11)
  • => 22

Question 11

  • 3(rs) + 4(x)
  • => 3(2 x 3) + 4(5)
  • => 3(6) + 4(5)
  • => 18 + 20
  • => 38

Question 12

  • 2(q) + 2(x + t)
  • => 2(1) + 2(5 + 4)
  • => 2 + 2(9)
  • => 2 + 18
  • => 20

Question 13

  • 6(3t + 4s)
  • => 6{3(4) + 4(3)}
  • => 6{12 + 12}
  • => 6(24)
  • => 144

Question 14

  • 10(10x) + 10y
  • => 10{10(5)} + 10(6)
  • => 10{50} + 60
  • => 500 + 60
  • => 560

Question 15

  • x(xy)
  • => 5{5 x 6}
  • => 5{30}
  • => 150

Question 16

  • r(s)(t)
  • => 2 x 3 x 4
  • => 24

Question 17

  • (r)(s)(t)(x)(y)
  • => 2 × 3 × 4 × 5 × 6
  • => 720

Question 18

  • 6(2x + 3Y)
  • 6{2(5) + 3(6)}
  • => 6{10 + 18}
  • => 6(28)
  • => 168

[tex]BrainiacUser1357[/tex]

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