# SOLUTION: y=4x+11 -6x+8y=36 solving systems by substitution ??????? Help please !!!!!

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 Click here to see ALL problems on Linear-systems Question 124877This question is from textbook algebra I : y=4x+11 -6x+8y=36 solving systems by substitution ??????? Help please !!!!!This question is from textbook algebra I Answer by jim_thompson5910(28536)   (Show Source): You can put this solution on YOUR website!Start with the given system Plug in into the first equation. In other words, replace each with . Notice we've eliminated the variables. So we now have a simple equation with one unknown. Distribute Combine like terms on the left side Subtract 88 from both sides Combine like terms on the right side Divide both sides by 26 to isolate x Divide Now that we know that , we can plug this into to find Substitute for each Simplify So our answer is and which also looks like Notice if we graph the two equations, we can see that their intersection is at . So this verifies our answer. Graph of (red) and (green)