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Scrat [10]
3 years ago
8

Karla is given the equation 10x + 15 = 20 to solve. She says the solution is 1/2

Mathematics
2 answers:
guajiro [1.7K]3 years ago
7 0
The answer is C.

you do the inverse of positive 15, which is negative 15. so put it on both side .

10x +15 =20
-15 =-15

to equal

10x =5

then divide 10 on both side

10x = 5
----- -----
10 10


x = 5/10 or 1/2
ycow [4]3 years ago
4 0
The answer is c because you need to isolate the x
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