Question

De o valor de X calcule me ajuda X+10 x/2 3x/4 = 70 + 30​

Answer 1

Resposta:

$x + 10 \frac{x}{2} \: \frac{3x}{4} = 70 + 30 = \\ x + 10 \times \frac{x}{2} \: \frac{3x}{4} = 70 + 30 \\ risque \: os \: numeros \: 10 \: e \: 2. \\ x + 5x - \frac{3x}{4} = 70 + 30 \\ x + 10 \frac{x}{2} - \frac{3x}{4} = 70 + 30 \\ x + 5x - \frac{3x}{4} = 100 \\ x + 5x - \frac{3x}{4} = 100 \\ x + 5x \\ 1x + 5x \\ (1 + 5)x \\ 6x + 5x - \frac{3x}{4} = 100 \\ 6x - \frac{3x}{4} = 100 \\ 4(6x - \frac{3x}{4} ) = 4x100 \\ 4 \times 6 \times - 4 \frac{3x}{4} = 4 \times 100 \\ 4x(6 \times - \frac{3x}{4}) = 4x100 \\ 4 \times 6x - 4 \times \frac{3x}{4} = 400 \\ 24 \times - 4 \times \frac{3x}{4} = 400 \\ 4 \times 6x - 4 \frac{3x}{4} = 400 \: \\ risque \: os \: dois \: numeos \: 4 \: e \: 4. \\ 24x - 3x = 400 \\ 6x - \frac{3x}{4} = 400 \\ 24x - 3x = 400 \\ 24x - 3x \\ (24 - 3)x \\ 21x \\24x -3x = 400 \\ 21x = 400 \\ 21x \div 21 = 400 \div 21 \\ x = 400 \div 21 \\ 21x \div 21 = 400 \div 21 \\x = \frac{400}{21} \\ 21x = 400 \\ x = \frac{400}{21} \\ resposta \\ x = \frac{400}{21} \\ espero \: ter \: te \: ajudado \: de \: alguma \: forma \:$