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Ali Lutz
20 October, 14:11
I need 10x+3y=19 and y=2x+5 solved algebraically
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Alisson Osborne
20 October, 15:00
0
Y=2x+5
sub 2x+5 for y in other equaiton
10x+3 (2x+5) = 19
distribute
10x+6x+15=19
minus 15 from both sides
16x=4
divide both sides by 16
x=1/4
sub back
y=2x+5
y=2 (1/4) + 5
y=1/2+5
y=5.5=11/2
solution is (1/4,11/2) or in decimal, (0.25,5.5)
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