queenbriii
queenbriii
02-09-2019
Mathematics
contestada
13. Solve for y: 39x – 3y = 21
Respuesta :
kimberlinaa
kimberlinaa
02-09-2019
39x-3y=21
-3y=21-39x
(subtract both sides of the equation by 39x and divide both sides by -3)
y=-7+3x : would be the equation for y.
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What is the answer to -3x+2y=5 3x+y=7
