a.
x=4
4×3=12
12+5=17
17×2=34
b.
x=1,5
1,5×3
4,5+5=9,5
9,5×2=19
c.
(x×3+5)×2=(3x+5)×2=6x+10
d.
x=7/2
6×7/2+10=(3×2×7)/2+10=21+10=31
x=0
6×0+10=10
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a.
x=4
4×3=12
12+5=17
17×2=34
b.
x=1,5
1,5×3
4,5+5=9,5
9,5×2=19
c.
(x×3+5)×2=(3x+5)×2=6x+10
d.
x=7/2
6×7/2+10=(3×2×7)/2+10=21+10=31
x=0
6×0+10=10