Answer:
a) y = [tex]\frac{7}{17}[/tex]
b) x = 4
Step-by-step explanation:
a) [tex]\frac{3y+2}{5} =4y-1[/tex]
3y + 2 = 20y - 5
2 = 20y - 3y - 5
2 = 17y - 5
2 + 5 = 17y
7 = 17y
y = [tex]\frac{7}{17}[/tex]
b) x² + 5 = 21
x² = 21 - 5
x² = 16
x = √16
x = 4
