y = 6x + 3 and y = 2x − 9.
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y = 6x + 3 _____________(1)
y = 2x − 9 _____________(2)
from equation (1) and (2)
6x + 3 = 2x - 9
6x - 2x = - 9 - 3
4x = - 12
x = - 3
______________:)
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