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antiseptic1488 [7]
2 years ago
13

SOlve the system of equations using substitution y=2x-10 y=4x-8

Mathematics
1 answer:
dezoksy [38]2 years ago
3 0
It should be,
4x-8=2x-10    because you substitute that for y.
Now you do,
4x-2x    because you do the opposite of the positive 2x as you bring it to the other side.
That is,
2x-8=10   now you bring the 8 to the other side.
2x=10+8   I added it because I do the opposite and it is a negative 8 so I add.
2x+18    now divide
x=9    that's the answer.
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