CodeRed1
CodeRed1
09-09-2016
Mathematics
contestada
Solve for y
4.2x - 1.4y = 2.1
Respuesta :
dalendrk
dalendrk
09-09-2016
4.2x - 1.4y = 2.1 |multiply both sides by 10
42x - 14y = 21 |subtract 42x from both sides
-14y = 21 - 42x |change signs
14y = 42x - 21 |divide both sides by 14
y = 3x - 1.5
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