½*4*(2,4+x)=7
2*(2,4+x)=7
4,8+2x=7
2x = 7 - 4,8
2x = 2,2 |:2
x = 1,1
½*6*(6⅓+x)=33
3*6⅓+x=33
18+3x=33
3x = 33 - 18
3x = 15 |:3
x = 5
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½*4*(2,4+x)=7
2*(2,4+x)=7
4,8+2x=7
2x = 7 - 4,8
2x = 2,2 |:2
x = 1,1
½*6*(6⅓+x)=33
3*6⅓+x=33
18+3x=33
3x = 33 - 18
3x = 15 |:3
x = 5
2*(2,4+x)=7
4,8+2x=7
2x=7-4,8
2x=2,2
x=1,1
½*6*(6⅓+x)=33
3*(19/3+x)=33
19+3x=33
3x=33-19
3x=14
x=14/3
x=4 ⅔