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Where is y in the first equation, you put its equivalent (=) -3x + 11 The first equation is then transformed into: 3x + 2*(-3x + 11) = 7. Then you get: 3x + (-6x) + 2*11 = 7 <=> -3x + 22 = 7 <=> 22 - 7 = 3x <=> 3x = 15 <=> x = 15/3 <=> x = 5. Then you substitute the x in the second equation by its equivalent so, (x = 5) y = -3*x + 11 <=> y = -3*5 + 11 <=> y = -15 + 11 <=> y = -4. x = 5. y = -4.
It is equivalent to x + y + 4.
3x + y - 4 = 0 y = -3x + 4 The slope is equivalent to the coefficient term of 'x', also known as 'm'. Therefore, the slope is -3.
y = 3x + 1 y = 3x + 2 y = 3x + 3 y = 3x
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