Matemática, perguntado por dstvdasantos, 4 meses atrás

4x÷3 - 3÷2 = x-2 ÷3 alguem pode me ajuda nessa aqui

Soluções para a tarefa

Respondido por simonesantosaraujo91
2

Resposta:

 \red{x =  \frac{5}{2}} \\

Explicação passo-a-passo:

 \pink{4x \div 3 - 3 \div 2 = x - 2 \div 3 } \\4x \div 3 - 3 \div 2 = x - 2 \div 3 \\  \frac{4}{3}x - 3 \div 2 = x - 2 \div 3 \\ 4x \div 3 - 3 \div 2 = x - 2 \div 3 \\  - 3 \div 2 \\  - (3 \div 2) \\  - 1.5 \\ 4x \div 3 - 3 \div 2 = x - 2 \div 3 \\ \\   \frac{4}{3} \: x - 1.5 = x - 2 \div3 \\ \\ 4x \div 3 - 3 \div 2 = x - 2 \div 3 \\ \\  \frac{4}{3} \: x - 1.5 = x \frac{2}{3} \\  \: 1.5 \\  \frac{15}{10} \\ \\   \frac{ \cancel1 \cancel5}{ \cancel1 \cancel0} \\ \\  \frac{3}{2} \\  \frac{4}{3} \: x - 1.5 = x -  \frac{2}{3} \\ \\  \frac{4}{3} \: x -  \frac{3}{2} = x -  \frac{2}{3} \\\\6( \frac{4}{3} \: x -  \frac{3}{2}) = 6(x -  \frac{2}{3}) \\ \\6 \times  \frac{4}{3} \: x - 6 \times  \frac{3}{2} = 6(x -  \frac{2}{3}) \\\\6 \times  \frac{4}{3} \: x - 6 \times  \frac{3}{2} = 6(x -  \frac{2}{3}) \\\\6( \frac{4}{3} \: x -  \frac{3}{2}) = 6(x -  \frac{2}{3}) \\  \\ 6 \times  \frac{4}{3} \: x - 6 \times  \frac{3}{2} = 6x - 6 \times  \frac{2}{3} \\  \\

 \cancel6 \times  \frac{4}{ \cancel3} \: x - 6 \times  \frac{3}{2} = 6x - 6 \times  \frac{2}{3} \\ \\ 2 \times 4x - 6 \times  \frac{3}{2} = 6x - 6 \times  \frac{2}{3} \\ \\ 6 \times  \frac{4}{3} \: x -  \cancel6 \times  \frac{3}{ \cancel2} = 6 \times  \frac{2}{3} \\ \\2 \times 4x - 3 \times 3 = 6x - 6 \times  \frac{2}{3} \\\\6 \times  \frac{4}{3}x - 6 \times  \frac{3}{2} = 6x -  \cancel6 \times  \frac{2}{ \cancel3} \\ \\2 \times 4x - 3 \times 3 = 6x - 2 \times 2 \\ 8x - 3 \times 3 = 6x - 2 \times 2 \\ 2 \times 4x - 3 \times 3 = 6x - 2 \times 2 \\ 8x - 9 = 6x - 2 \times 2 \\ 2 \times 4x - 3 \times 3 = 6x - 2 \times 2 \\ 8x - 9 = 6x - 4 \\  \frac{4}{3}x -  \frac{3}{2} = x -  \frac{2}{3} \\ \\8x - 9 = 6x - 4 \\ 8x - 9 - 6x = 6x - 4 - 6x \\ 8x - 9 - 6x =  - 4 \\ 8x - 9 = 6x - 4 \\ 8x - 9 - 6x =  - 4 \\ 8x - 9 = 6x - 4 \\ 8x - 9 - 6x + 9 =  - 4 + 9 \\ 8x - 6x =  - 4 + 9 \\ 8x - 9 = 6x - 4 \\ 8x - 6x =  - 4 + 9 \\ 8x - 6x \\ (8 - 6)x \\ 2x \\ 8x - 6x =  - 4 + 9 \\ 2x =  - 4 + 9 \\ 8x - 6x =  - 4 + 9 \\  - 4 + 9 \\  + (9 - 4) \\ 5 \\ 8x - 6x =  - 4 + 9 \\ 2x = 5 \\ 2x \div 2 = 5 \div 2 \\ x = 5 \div 2 \\ 2x \div 2 = 5 \div 2 \\ x =  \frac{5}{2} \\ \\ 2x = 5  \\ \\ x =  \frac{5}{2} \\ \green{resposta} \\  \red{x =  \frac{5}{2} }

Perguntas interessantes