Answer:
Step-by-step explanation:
first work what's in the brackets { 4 x 2 -10}^3
{4 x 2-1000}
4 x -998
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12x+y=10 -----> 12x + y = 10
-3=3x+3y ------> -12x - 12y = 12 (multiplied by -4)
-11y = 22
y= -2
12x - 2 = 10
x = 1