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55=-5(x-3)
We simplify the equation to the form, which is simple to understand
55=-5(x-3)
Reorder the terms in parentheses
55=+(-5x+15)
Remove unnecessary parentheses
+55=-5x+15
We move all terms containing x to the left and all other terms to the right.
+5x=+15-55
We simplify left and right side of the equation.
+5x=-40
We divide both sides of the equation by 05 to get x.
x=-8
| 4cos^2x=3cotx-1 | | 5x=27+-2 | | 34=10+4c | | -x^3+x^2+7x=0 |