(-2)(3*4+2(-2)(-5)) = -2(12+20) = -2(32) = -64
1) 2x + 3y = 12 -> 3y = -2x +12 -> y = -2/3x + 4
2) 4y - 7x = 16 -> 4y = 7x + 16 -> y = 7/4x + 4
Answer:
n=1
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idk what kind of math problem but, if its just simple id us PEMDAS