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OpenStudy (anonymous):
How do you Solve the system by the substitution method 2x - 3y = -13 y = 2x + 7
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hartnn (hartnn):
substitute y= 2x+7 in the first equation like write 2x+7 in place of y in 2x-3y = -13
OpenStudy (cwrw238):
just replace y in first equation by 2x + 7 and solve for x then use this value of x in the second equation to find y
OpenStudy (anonymous):
currently y = 2x + 7 you can take that and substitute the y value in the first equation for that value and then you can solve for x then take that x value you find and put it into the above equation of y to solve for y
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