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Cloud [144]
4 years ago
6

3x - y = 2 y = 2x -9 what is x and y using substitution

Mathematics
2 answers:
xxTIMURxx [149]4 years ago
8 0

3x - y = 2

y = 2x - 9

Substitute:

3x - 2x - 9 = 2

x - 9 = 2

x = 11

Substitute your answer into any equation:

y = 2x - 9

y = 2(11) - 9

y = 22 - 9

y = 13

Answer:

x = 11 ; y = 13

dexar [7]4 years ago
8 0
3x-y=2
y=2x-9

Substitute y

3x - 2x-9 =2

Solve

X-9=2

X=11
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