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x-2(x+4)=7
x-2x-8=7
-x=15
x=-15
b)
0=-4(x+3)
0=-4x-12
4x=-12
x=-3
c)
-5(x+2)-16=0
-5x-10-16=0
-5x=26
x=-26/5=-5⅕
x-2(x+4)=7
x-2x-8=7
-x=15
x=-15
b)
0=-4(x+3)
0=-4x-12
4x=-12
x=-3
c)
-5(x+2)-16=0
-5x-10-16=0
-5x=26
x=-26/5=-5⅕