Matéria: Matemática
Autor: arlindo2013santos
Perguntado 7 anos atrás

Se A=2x+4y+5, B=2x+2y-3 e C=+4x-y+4, determine o valor de A-B+C.

Respostas

respondido por: Zadie

$(2x + 4y + 5) - (2x + 2y - 3) + ( + 4x - y + 4)$

De início, vamos eliminar os parênteses.

$2x + 4y + 5 - 2x - 2y + 3 + 4x - y + 4$

Agora vamos reduzir os termos semelhantes.

$2x + 4y + 5 - 2x - 2y + 3 + 4x - y + 4 = \\ = 2x - 2x + 4x + 4y - 2y - y + 5 + 3 + 4 = \\ = 4x + (4 - 2 - 1)y + 12 = \\ = 4x + y + 12$

arlindo2013santos: Muito obrigado mas qual é a resposta?kkk

Zadie: essa é a resposta rs

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