Can you please help me with that

see explanation

Step-by-step explanation:

1

4x = 3x + 5 ( subtract 3x from both sides )

x = 5

2

7m = 8 + 5m ( subtract 5m from both sides )

2m = 8 ( divide both sides by 2 )

m = 4

3

2a = 9 - a ( add a to both sides )

3a = 9 ( divide both sides by 3 )

a = 3

4

d = 3 ( multiply both sides by 4 to clear the fraction )

d = 3 × 4 = 12

5

5y + 6 = 21 ( subtract 6 from both sides )

5y = 15 ( divide both sides by 5 )

y = 3

6

2n - 3 = 6 ( add 3 to both sides )

2n = 9 ( divide both sides by 2 )

n = 4.5