<span>1. -6х-13=-7х-14</span>
<span>-6х + 7х = -14 + 13</span>
<span>х = -1.</span><span />
<span></span>
<span>2. <span>6х-7(3х-5)-2(4х-7)=3</span></span>
<span><span> 6х - 21х + 35 - 8х + 14 = 3</span></span>
<span><span> -23х = -46</span></span>
<span><span>х = 2</span></span>
Ответ:
Пошаговое объяснение: