Answer:
[tex]x = \frac{5y + 7}{4}[/tex]
Step-by-step explanation:
5y - 4x = - 7
5y - 4x + 4x = - 7 + 4x [adding + 4x on both sides ]
5y + 7 = - 7 + 7 + 4x [adding 7 on both sides , - 4x + 4x = 0 ]
5y + 7 = 4x [ -7 + 7 = 0 ]
[tex]\frac{5y + 7}{4} = \frac{4x}{4}[/tex] [ dividing by 4 on both sides ]
[tex]x = \frac{5y + 7}{4}[/tex]