21+t=-18

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Solution for 21+t=-18 equation:


21+t=-18

We simplify the equation to the form, which is simple to understand 
21+t=-18

We move all terms containing t to the left and all other terms to the right. 
+1t=-18-21

We simplify left and right side of the equation. 
+1t=-39

We divide both sides of the equation by 1 to get t. 
t=-39

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