Mathematics
karanjas
22

how to graph system of equation y=-2x+1 y=x-5 what does the solution mean to this problem?

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(1) Answers
giovanaramalho

Alright. So, we need to apply the substitution method. y+5 = x - 5          +5 y+5 = x x = y+5            Now we have our value for x Plug in the value for x, then solve. y = -2(y+5) + 1 Distributive property y = -2*y + -2*5 + 1 y = -2y + -10 + 1 y = -2y + -9 y+2y = -2y + -9       +2y 3y = -9 3y/3 = -9/3 y = -3 Here, we know that y = -3 Now, apply it into an equation to solve for x. -3+5 = x - 5            +5 2 = x Now we know that x = 2 y = -3

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