7x+139 ----------------=15 13

Question

7x+139 ----------------=15 13

Answer 1

(7 * Х + 139) / 13 = 15

7 * X + 139 = 195

7 * X = 195 - 139 = 56

X = 8

Answer 2

7х=1513-139

7х=1374

х=196  2/7