Răspuns :
a) x+ 2 (a+b)=17
x+2*8=17
x=1
b)75-x=5(a+b)=588=40
75-x=40
x=35
c)x ( a+b)=24
x*8=24
x=3
d)4x-3*8=8
4x=3*8+8
4x=4*8
x=8
x+2*8=17
x=1
b)75-x=5(a+b)=588=40
75-x=40
x=35
c)x ( a+b)=24
x*8=24
x=3
d)4x-3*8=8
4x=3*8+8
4x=4*8
x=8
X+2(a+b)=17
X+2•8=17
X+16=17
X=17-16
X=1
75-x=5a+5b
75-x=5(a+b)
75-x=5•8
75-x=40
X=75-40
X=30
X•a+x•b=24
X(a+b)=24
X•8=24
X=24:8
X=3
4x-3(a+b)=8
4x-3•8=8
4x-24=8|:4
X-6=2
X=6+2
X=8
X+2•8=17
X+16=17
X=17-16
X=1
75-x=5a+5b
75-x=5(a+b)
75-x=5•8
75-x=40
X=75-40
X=30
X•a+x•b=24
X(a+b)=24
X•8=24
X=24:8
X=3
4x-3(a+b)=8
4x-3•8=8
4x-24=8|:4
X-6=2
X=6+2
X=8