Odpowiedź:
Szczegółowe wyjaśnienie:
1.6x-3=45
6x=45+3
6x=48/6
x=8
2.)3x+21=18
3x=18-21
3x=-3/3
x=-1
3)5x-6=4x+1
5x-4x=1+6
x=7
4)3(x-5)=x+1
3x-15=x+1
3x-x=15+1
2x=15/2
x=8
5)9x-2(x+1)=7x+2
9x-2x-2=7x+2
9x-2x-7x=2+2
0=4
6)
6x+35=5(X+7)+X
6x+35=5x+35+x
6x-5x-x=35-35
0=0
1) 45+3=48 48÷6=8 x=8
2)18-21=-3 -3÷3=-1 x=-1
3)5x – 6 = 4x + 1/÷4x + 1
5×x-(4×x)-6-1=0
x-7=0/+7
x=7
4)3×(x-5)=x+1/-x+1
3×(x-5)-x-1=0
2×x-15-1=0
2×x-16=0/+16
2×x =16/÷2
x=8
5)
9×x-(2×(x+1))-(7×x)-2=0
9×x-2×(x+1)-7×x-2=0
7×x-7×x-2-2=0
2-2 =0
-4 =0
x=∈∅
6)6×x-(2×(x+7))-x+35=0
6×x-2×(x+7)-x+35=0
4×x-x-14+35 = 0
3×x-14+35 = 0
3×x+21=0/-21
3×x =-21/÷3
x=[tex]\frac{-21}{3}[/tex]
x = -21/÷3
x = -7
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