The equation -1 = 2(1) - 3 simplifies to -1 = 2 - 3, which can be further simplified to -1 = -1. This equation is true.
The equation 7(1) - 4(-1) simplifies to 7 - (-4), which can be further simplified to 7 + 4, resulting in 11. Therefore, 7(1) - 4(-1) equals 11.
-1=2(1)-3
7(1)-4(-1)=6
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