10(25+x)+8=30怎么算?|
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10(25+x)+8=30怎么算?|
10(25 + x) + 8 = 30
10(25 + x) = 30 - 8
10(25 + x) = 22
25 + x = 22 ÷ 10
25 + x = 2.2
x = 2.2 - 25
x = -22.8
10(25 + x) = 30 - 8
10(25 + x) = 22
25 + x = 22 ÷ 10
25 + x = 2.2
x = 2.2 - 25
x = -22.8