Answer:
x = 30
Step-by-step explanation:
1.2x - 2 = 7 + 0.9x collect like terms over both sides
0.3x = 9 divide both sides by 0.3
1.2x-2=7+.9x
Add 2 to 9 which changes the equation to 1.2x=9+.9x
Next subtract .9x from 1.2x
Ur equation should now be .3x=9
Divide
X=30
