\(a,60-3.\left(x-2\right)=51\)
\(3.\left(x-2\right)=60-51\)
\(3.\left(x-2\right)=9\)
c \(x-2=9:3\)
\(x-2=3\)
\(x=3+2\)
\(x=5\)
\(b,541+\left(218-x\right)=725\)
\(218-x=725-541\)
\(218-x=184\)
\(x=218-184\)
\(x=34\)
\(c,3.\left(5x-13\right)=3^4\)
\(3.\left(5x-13\right)=81\)
\(5x-13=81:3\)
\(5x-13=27\)
\(5x=27+13\)
\(5x=40\)
\(x=8\)
\(d,\left(2x-7\right)-\left(x+135\right)=0\)
\(2x-7-x-135=0\)
\(x-142=0\)
\(x=0+142\)
\(x=142\)
còn phần e nữa mà bạn
bạn làm cả phần e đi mình k cho
xin lỗi câu e là :
e, 532-8.(x+3)=52.4
3.(x−2)=60−51
3.(x−2)=9
c x−2=9:3
x−2=3
x=3+2
x=5
b,541+(218−x)=725
218−x=725−541
218−x=184
x=218−184
x=34
c,3.(5x−13)=34
3.(5x−13)=81
5x−13=81:3
5x−13=27
5x=27+13
5x=40
e) 532-8.(x+3)=52.4
532-8.(x+3) = (52)4
532-8.(x+3) = 254
532-8.(x+3) =100
8.(x+3) =532-100
8.(x+3) = 432
(x+3) = 432 : 8
x+3 = 54
x = 54 - 3
x = 51
