Public-Domain Publishing Projects

Sign in Start a book

nydus/The First Steps in AlgebraPublic

Page 30 of 222

Table of Contents

II. Ecuaciones simples

$3 x + 4 = x + 10$ .

$4 x + 6 = x + 9$ .

$7 x - 19 = 5 x + 7$ .

$3 (x - 2) = 2 (x - 3)$ .

$8 x + 7 = 4 x + 27$ .

$3 x + 10 = x + 20$ .

$5 (x - 2) = 3 x + 4$ .

$3 (x - 2) = 2 (x - 1)$ .

$2 x + 3 = 16 - (2 x - 3)$ .

$19 x - 3 = 2 (7 + x)$ .

$7 x - 70 = 5 x - 20$ .

$2 x - 22 = 108 - 2 x$ .

$2 (x + 5) + 5 (x - 4) = 32$ .

$2 (3 x - 25) = 10$ .

$33 x - 70 = 3 x + 20$ .

$4 (1 + x) + 3 (2 + x) = 17$ .

$8 x - (x + 2) = 47$ .

$3 (x - 2) = 50 - (2 x - 9)$ .

$2 x - (3 + 4 x - 3 x + 5) = 4$ .

$5 (2 - x) + 7 x - 21 = x + 3$ .

$3 (x - 2) + 2 (x - 3) + (x - 4) = 3 x + 5$ .

$x + 1 + x + 2 + x + 4 = 2 x + 12$ .

$(2 x - 5) - (x - 4) + (x - 3) = x - 4$ .

$4 - 5 x - (1 - 8 x) = 63 - x$ .

$3 x - (x + 10) - (x - 3) = 14 - x$ .

$x^{2} - 2 x - 3 = x^{2} - 3 x + 1$ .

30