Question

1. $1.73 + x = 2.59$
2. $2.71 + x = 3.53$
3. $4.16 + x = 6.73$
4. $7 + x = 8$
5. $4.36 + x = 6.66$
6. $3.59 + x = 5.74$
7. $1 + x = 6$
8. $7 + x = 9$
9. $2.44 + x = 4.28$

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Explanation:

Step1: Isolate x for Q4

$x = 2.59 - 1.73$

Step2: Calculate Q4 result

$x = 0.86$

Step3: Isolate x for Q5

$x = 3.53 - 2.71$

Step4: Calculate Q5 result

$x = 0.82$

Step5: Isolate x for Q6

$x = 6.73 - 4.16$

Step6: Calculate Q6 result

$x = 2.57$

Step7: Isolate x for Q7

$x = 8 - 7$

Step8: Calculate Q7 result

$x = 1$

Step9: Isolate x for Q8

$x = 6.66 - 4.36$

Step10: Calculate Q8 result

$x = 2.3$

Step11: Isolate x for Q9

$x = 5.74 - 3.59$

Step12: Calculate Q9 result

$x = 2.15$

Step13: Isolate x for Q10

$x = 6 - 1$

Step14: Calculate Q10 result

$x = 5$

Step15: Isolate x for Q11

$x = 9 - 7$

Step16: Calculate Q11 result

$x = 2$

Step17: Isolate x for Q12

$x = 4.28 - 2.44$

Step18: Calculate Q12 result

$x = 1.84$

Answer:

1. $x=0.86$
2. $x=0.82$
3. $x=2.57$
4. $x=1$
5. $x=2.3$
6. $x=2.15$
7. $x=5$
8. $x=2$
9. $x=1.84$