a)\(x=875-\left(50\times7\right)=875-350=525\)
b)\(x=504:14=36\)
\(a,875-x=50\times7\)
\(\Leftrightarrow x=875-\left(50\times7\right)\)
\(\Leftrightarrow x=875-350\)
\(\Leftrightarrow x=525\)
\(b,x\times14=504\)
\(\Leftrightarrow x=504:14\)
\(\Leftrightarrow x=36\)
\(c,5760:x=96\)
\(\Leftrightarrow x=5760:96\)
\(\Leftrightarrow x=60\)
\(d,x:17=860\)
\(\Leftrightarrow x=860\times17\)
\(\Leftrightarrow x=14620\)
a)875-x=50.7=350
\(\Leftrightarrow x=875-350=525\)
b)x.14=504
\(\Leftrightarrow x=\dfrac{504}{14}=36\)
c)5760:x=96
\(\Leftrightarrow x=\dfrac{5760}{96}=60\)
d)x:17=860
\(\Leftrightarrow x=860.17=14620\)