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raketka [301]
3 years ago
7

What value of a makes the solution to the equation 5x-10=3x+a equal to 12

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer:

a=-1.2

Step-by-step explanation:

5x-10=3x+a=12

let's first find x:

5x-10=12

add 10 to both sides:

5x=22

divide both sides by 5:

x=4.4

now that we know what x is, we can plug it back into the equation to find a:

3*4.4+a=12

first, simplify both sides:

13.2+a=12

then, subtract 13.2 from both sides:

and our answer is: a=-1.2

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