Answer:
= - 
Step-by-step explanation:
Given
=
( cross- multiply )
2(a - b) = 3(a + 2b) ← distribute parenthesis on both sides )
2a - 2b = 3a + 6b ( subtract 3a from both sides )
- a - 2b = 6b ( add 2b to both sides )
- a = 8b ( divide both sides by 8 )
-
a = b ( divide both sides by a )
-
= 
Step-by-step explanation:

here ( + ) × ( - ) = ( - )




Answer:
<em>X=2</em>
Step-by-step explanation:
3x-15=7-8x
3x+8x=7+15
11x=22
x=
x=2
How many dekameters are in 225 millimeters? Use the metric table to help answer the question.Metric Tablekilo-hecto-deka-unitdeci-centi-milli-1,0001001010.10.010.001