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OpenStudy (anonymous):
Solving Systems of Equations by Substitution. y= -3x + 5 5x - 4y = -3
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OpenStudy (p0sitr0n):
the goal of substitution is to replace one variable`s value by another so, 5x -4(-3x +5) +3 =0 5x +12x-20 + 3 = 0 17x -17 =0 17x = 17 x =1
OpenStudy (p0sitr0n):
y =2
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