4.2y + 0.8 = 6.2y - (1.1y + 0.8) + 1.2
Multiply/distribute the - into (1.1y + 0.8)
4.2y + 0.8 = 6.2y - 1.1y - 0.8 + 1.2
Combine like terms
4.2y + 0.8 = 5.1y + 0.4
Subtract 4.2y on both sides
0.8 = 0.9y + 0.4
Subtract 0.4 on both sides
0.4 = 0.9y
Divide 0.9 on both sides
[tex]\frac{0.4}{0.9} = y[/tex]
