Assigensubstitution.The value of x in this system of equations is 138 + y = 9y = - 4x + 101. Substitute the value of y in the first equation:2. Combine like terms:3. Apply the subtraction property of equality:4. Apply the division property of equality:3x + (-4x + 10) = 9-x + 10 = 9-x= -1x=1What is the value of y?Done

The value of y is 6Step-by-step explanation:We are given the system of equations:[tex]3x+y=9\\y=-4x+10[/tex]They have found the value of x by substituting the value of y in eq(2) in eq(1)[tex]3x + (-4x + 10) = 9\\-x + 10 = 9\\-x= -1\\x=1[/tex]The value of x=1We need to find value of y.If we put value of x=1 into equation (1)[tex]3x+y=9\\3(1)+y=9\\y=9-3\\y=6[/tex]So, The value of y is 6Keywords: System of Equations Learn more about System of Equations at: brainly.com/question/13168205 brainly.com/question/2115716 brainly.com/question/3739260 #learnwithBrainly