-(×+4)+3(1+×)-×=2(1+2×) calcule
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(-1) (x+4) +3(1+x)-×=2(1+2×)
+( X + 4) + 3 ( 1 + x)- x =2(1+2×)
+×+4+3+1+×-×=2+1+2×
x+×-×-2×=2+1-4-3-1
-×=-5
(-1) -×=-5
+×=+5
+( X + 4) + 3 ( 1 + x)- x =2(1+2×)
+×+4+3+1+×-×=2+1+2×
x+×-×-2×=2+1-4-3-1
-×=-5
(-1) -×=-5
+×=+5
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