12+x=43
x=43-12
x=31
x+33=55
x=55-33
x=22
44+x=63
x=63-44
x=19
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\(12+x=43\)
\(x=43-12\)
\(=31\)
\(x+33=55\)
\(x=55-33\)
\(x=22\)
\(44+x=63\)
\(x=19\)
1, 12 + x = 43
x = 43 - 12
x = 31
2, x + 33 = 55
x = 55 - 33
x = 22
3, 44 + x = 63
x = 63 - 44
x = 19
12 + x = 43 x + 33 = 55 44 + x = 63
x = 43 - 12 x = 55 - 33 x = 63 - 44
x = 31 x = 22 x = 19
a,12+x=43
x=43-12
x=31
b,x+33=55
x=55-33
x=22
c,44+x=63
x=63-44
x=19