# SOLUTION: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent, can someone please help me solve this equation y= -4x-7 y= 3x

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent, can someone please help me solve this equation y= -4x-7 y= 3x      Log On

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 Click here to see ALL problems on Linear-equations Question 246646: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent, can someone please help me solve this equation y= -4x-7 y= 3xAnswer by ankor@dixie-net.com(15638)   (Show Source): You can put this solution on YOUR website!y= -4x - 7 Since y = 3x we can write the 1st equation: 3x = -4x - 7 add 4x to each side 3x + 4x = -7 7x = -7 Divide both sides by 7 x = x = -1 : Find y: y = 3x y = 3(-1) y = -3 : Check solution in 1st equation, substitute for x and y y = -4x - 7 -3 = -4(-1) - 7 -3 = +4 - 7 : x is the independent variable y is the dependent variable
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