Question 307584
substitution method: 
6x - y = 10
y = -3/4x - 1 
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Sub for y into the 1st eqn
substitution method: 
6x - y = 10
6x - (-3x/4 - 1) = 10
6x + 3x/4 + 1 = 10
27x/4 = 9
27x = 36
x = 4/3