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Estudos Gerais • 04/06/2025

Resolva os seguintes sistemas de duas incógnitas x e y: 1º g...

Resolva os seguintes sistemas de duas incógnitas x e y: 1º grau nas incógnitas x e y

a) { x + y = 42 { x - y = 8

b) { 2x + 7y = 1 { -2x + 3y = -11

c) { 7x - 4y = 22 { 2x - 4y = -8

d) { 8x + 6y = 10 { -3x + y = -12

Resolva os seguintes sistemas de duas incógnitas x e y:
1º grau nas incógnitas x e y

a) { x + y = 42
{ x - y = 8

b) { 2x + 7y = 1
{ -2x + 3y = -11

c) { 7x - 4y = 22
{ 2x - 4y = -8

d) { 8x + 6y = 10
{ -3x + y = -12

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