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kushashwa23
 3 years ago
Best ResponseYou've already chosen the best response.12x+4x=9y3 2x+4x=8y+3   = +  0 = y6 6=y y=6 m i going right

alexray19
 3 years ago
Best ResponseYou've already chosen the best response.0That's not the substitution method; that's subtraction. Because you solved them both to equal 2x+4x, you could substitute them by taking the righthand sides of both of the equations and setting them equal to each other:\[9y3=8y+3\]Then solve for y:\[9y=8y6\]\[y=6\]

AdequateDisclosure
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1316128480617:dw
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