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OpenStudy (anonymous):
Use addition or substitution to find the value of y for this set of equations. 2x - 3y = -15 x = 4y
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OpenStudy (anonymous):
substitute x=4y into the first equation. 2x - 3y = -15 2(4y) - 3y = -15
OpenStudy (anonymous):
thank u
OpenStudy (anonymous):
Just substitute the value of x = 4y in place of x in first equation: 2(4y) - 3y = -15 8y - 3y = -15 Try to solve it and find y..
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