Question

-x+3=-2x+1
valor de x​

Answer 1

Resposta:

Explicação passo-a-passo:

→ -x + 3 = -2x + 1

→ -x + 2x = 1 - 3

→ -1x + 2x = -2

→ 2x - 1x = -2

→ 1x = -2

→ x = -2/2

→ x = -1 ✓

HP = {-1}

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Notas:

• (—) × (+) = (—)
• (+) × (—) = (—)
• (+) × (+) = (+)
• (—) × (—) = (+)