Anyone good at 7th grade math and doesn’t mind helping me out with my homework?
Use the distributive property to write an equivalent expression:
8. -4(x + 3)
10. 6(x – 3)
Simplify the expression by combining like terms:
12. 8x + 7y +2x
13. 15m + 11p – p
14, 9c + 11d – 3c -4d
15. -5x -7y + 2x – 9y
16. 3x + 4y +7x – 8y
In exercises 17-19, use the following information:
You work for 8 hours. You earn $7.50 an hour. The amount you earn is 8(7.50)
17. Write 8(7.50) as 8 times the sum of a whole number and a decimal.
18. Find the products of 8 and the whole number and of 8 the decimal.
19. Find the sum of the products.
In exercises 22-27, simplify the expression.
22. 9(w – 6)
23. 7x(4 + 3 -5)
24. 7x – 3 + 9x – 4x
25. 8(d + 4d) – 3d
27. 9 (3g – 5) + 6 -4g
(wait while I add additional)
Favorite Answer
distributive law
a(x + y) = ax + ay
8)
-4(x + 3)
= -4x + (-4)*3
= -4x – 12
10)
answer 6x – 18
15)
-5x -7y + 2x – 9y
= -5x + 2x -7y – 9y
= (-5+2)x + (-7-9)y
= -3x -16y
17),18),19)
8(7.50)
= 8(7.00 + 0.50)……….17)
= 8(7.00) + 8(0.50)
= 56.00 + 4.00………..18)
= 60.00………….19)
23)
7x(4 + 3 -5)
= 7x(2)
= 14x
27)
9 (3g – 5) + 6 – 4g
= 9*3g – 9*5 + 6 – 4g
= 27g – 45 + 6 – 4g
= (27-4)g -39
= 23g – 39
.
8. -4(x + 3) = -4(x) + -4(3) = -4x – 12
10. 6(x – 3) = 6(x) + 6(-3) = 6x – 18
12. 10x + 7y
13. 15m + 10p
14. 6c + 7d
15. -3x – 16y
16. 10x – 4y
17. 8(7) + 8(0.50)
18. 56 + 4
19. 60
22. 9w – 54
23. 14x
24. 12x – 3
25. 37d
27. 23g – 39
8. -4(x + 3) = -4(x) + -4(3) = -4x – 12
10. 6(x – 3) = 6(x) + 6(-3) = 6x – 18
And for these – do exactly what it says.
12. 10x + 7y
13. 15m + 10p
14. 6c + 7d
15. -3x – 16y
16. 10x – 4y
17. 8(7) + 8(0.50)
18. 56 + 4
19. 60
22. 9w – 54
23. 14x
24. 12x – 3
25. 37d
27. 23g – 39
10. 6X-18
12. 10x+7Y
13. 15M+10P
14. 16D-3C
15. 13X-16Y
16. 10X-4Y
17. DNF
18. DNF
19. DNF
The rest DNF
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