Pergunta

7w+5=3w-15 w=5 w=-2 w=2 w=-5 5 -2 2 -5
Solução
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ElaineEspecialista · Tutor por 3 anos
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To solve the equation 7w+5=3w-15, we need to isolate the variable w.
Step 1: Subtract 3w from both sides of the equation.
7w - 3w + 5 = 3w - 3w - 15
4w + 5 = -15
Step 2: Subtract 5 from both sides of the equation.
4w + 5 - 5 = -15 - 5
4w = -20
Step 3: Divide both sides of the equation by 4.
\frac{4w}{4} = \frac{-20}{4}
w = -5
Therefore, the correct answer is w = -5.
Step 1: Subtract 3w from both sides of the equation.
7w - 3w + 5 = 3w - 3w - 15
4w + 5 = -15
Step 2: Subtract 5 from both sides of the equation.
4w + 5 - 5 = -15 - 5
4w = -20
Step 3: Divide both sides of the equation by 4.
\frac{4w}{4} = \frac{-20}{4}
w = -5
Therefore, the correct answer is w = -5.
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