2x+69.2=69.4
2x=69.4-69.2
2x=69.(4-2)
2x=69.2
2x=138
x=138:2
x=69
2.x+69.2=69.4
2.x+69.2=276
2.x+138=276
2.x =276-138
2.x = 129
x = 129 :2
x = 64,5
2x=69.4-69.2
2x=69.(4-2)
2x=69.2
2x=138
x=138:2
x=69
\(2x+69\cdot2=69\cdot4\)
\(2x+138=276\)
\(2x=276-138\)
\(2x=138\)
\(x=138:2\)
x=69
2x + 69 . 2 = 69 . 4
2x + 138 = 276
2x = 276 - 138
2x = 138
x = 138 : 2
x = 69
