X+5y=10 3x+5y=0 on a graph
1 answer:
For this problem you can do it a couple of ways. the way that i chose to do it was by moving everything to get y alone, but you can also find the x and y intercepts by plugging in 0 for the other variable (what i mean by this: x+5y=10; plug in 0 for x and your y intercept is 2). then you graph each equation and the solution to the system (if you also need that) would be (-4,3) since this is where the lines intersect.
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To solve this one-step equation you:
1. Substract 9 in both sides of the equation:
In this step is the mistake as Sara gets as result -4x=29 and the corret result of substract 9 in both sides of the equation is 5x=20.2. Divide both sides of the equation into 5:
Then, the answer that Sara should found for the equation is x=4