2x + 7 = 5x – 26
2x – 5x = – 26 – 7
-3x = -33
x = 11
0.4×(y-5)=0.3×(y+1)+1.2
0.4y – 2 = 0.3y + 0.3 + 1.2
0,4y – 0,3y = 1,2 + 0,3 + 2
0.1y = 3.5
y = 35
2x + 7 = 5x – 26
2x – 5x = – 26 – 7
-3x = -33
x = 11
0.4×(y-5)=0.3×(y+1)+1.2
0.4y – 2 = 0.3y + 0.3 + 1.2
0,4y – 0,3y = 1,2 + 0,3 + 2
0.1y = 3.5
y = 35