(5-x) &# 178; + (7-2x) &# 178; = 25 the process of solving the equation

In the original formula, both sides are square at the same time
5-x + 7-2x = plus or minus 5
3x-12 = plus or minus 5
3x = plus or minus 5 + 12
x1=17/3 x2=7/3

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