Question

can someone pls help me with this

Answer 1

Answer:

a=-2

Step-by-step explanation:

Answer 2

The solution will be as follows;

• -3 - (a - 2) = 7a + 15
• -3 -a + 2 = 7a + 15
• -1 - a = 7a + 15
• - a - 7a = 15 + 1
• -8a = 16
• -a = 16 ÷ 8
• -a = 2
• a = -2

And finally, the value of a is -2.