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Mathematics
Sandra Davis
14 May, 16:51
Y = 3x-5
6x + 3y = 15
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Raegan Welch
14 May, 18:07
0
y = 3x - 5
So substitute 3x-5 for y:
6x + 3 (3x-5) = 15
Simplify:
6x + 9x - 15 = 15
15x - 15 = 15
x - 15 = 1
x = 16
THEN find y by plugging the value of x back into the first equation:
y = 3 (16) - 5
y = 48 - 5
y = 43
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