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Ne4ueva [31]
3 years ago
5

Simplify by combining like terms -7+d-6+2d PLEASE HELP!!! ASAP!!!

Mathematics
2 answers:
Nesterboy [21]3 years ago
6 0

Answer:

-13+3d

Step-by-step explanation:

(-7-6)+(d+2d) Letters with letters and numbers with numbers.

-13+3d

scZoUnD [109]3 years ago
5 0

Answer:

3d - 13.

Step-by-step explanation:

-7 + d - 6 + 2d

= d + 2d - 7 - 6

= 3d - 13

Hope this helps!

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Solve the simultaneous equations:<br><br> 3a-2b=14 <br> 12a+9b=39
kirill [66]
Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
5 0
3 years ago
Can someone help me please
vlada-n [284]

Answer:A goes with 3

B goes with 1

And C goes with 2

Step-by-step explanation:

4 0
3 years ago
Find the solution of the system of equations.<br> -9x - 5y = -18<br> 4x + 5y = 33
Rus_ich [418]

Answer:

x=-3, y=9. (-3, 9).

Step-by-step explanation:

-9x-5y=-18

4x+5y=33

---------------

-5x=15

x=15/-5

x=-3

4(-3)+5y=33

-12+5y=33

5y=33-(-12)

5y=33+12

5y=45

y=45/5

y=9

6 0
3 years ago
Read 2 more answers
14a²b<br> 7a²b<br> =<br> Simplify
lidiya [134]

Step-by-step explanation:

if14a^2b/7a^2b answer is 2

and if the sign is addition then the answer is21a^2b if subtraction answer is7a^2b

4 0
3 years ago
Are 12/16 and 6/9 equivalent? Explain your answer.
Reptile [31]

Answer:

No

Step-by-step explanation:

Times the numerator and denominator by 2. 6 does turn into 12, but 9 doesn't turn into 16. Therefore, these fractions are not equivalent.

8 0
3 years ago
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