Удачи..........................
<span>64+36:(x*3-15)=70</span>
<span>36:(x*3-15)=70-64</span>
<span>36:(x*3-15)=6</span>
<span>(x*3-15)=36:6</span>
<span>(x*3-15)=6</span>
<span>х*3=6+15</span>
<span>х*3=21</span>
<span>х=21:3</span>
<span>х=7</span>
<span>124-24*(480:x-56)=28</span>
<span>24*(480:x-56)=124-28</span>
<span>24*(480:x-56)=96</span>
<span>(480:x-56)=96:24</span>
<span>(480:x-56)=4</span>
<span>480:х=4+56</span>
<span>480:х=60</span>
<span>х=480:60</span>
<span>х=8</span>