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See below.

Step-by-step explanation:

All the equations are one-step equations.

In each case, see what operation is being done to the variable, and do the opposite operation to both sides.

1.

t + 1.32 = 3.48

1.32 is being added to t.

Subtract 1.32 from both sides.

t + 1.32 - 1.32 = 3.48 - 1.32

t = 2.16

2.

b - 4.22 = 7.08

4.22 is being subtracted from b.

Add 4.22 to both sides.

b - 4.22 + 4.22 = 7.08 + 4.22

b = 11.3

4.

h + 4/9 = 7/9

4/9 is being added to h.

Subtract 4/9 from both sides.

h + 4/9 - 4/9 = 7/9 - 4/9

h = 3/9

h = 1/3

5.

-5/8 = x - 1/4

1/4 is being subtracted from x.

Add 1/4 to both sides.

-5/8 + 1/4 = x - 1/4 + 1/4

-5/8 + 2/8 = x

-3/8 = x

x = -3/8

7.

3.2c = 9.6

c is being multiplied by 3.2.

Divide both sides by 3.2.

3.2c/3.2 = 9.6/3.2

c = 3

8.

-5.04 = 1.26d

c is being multiplied by 1.26.

Divide both sides by 1.26.

-5.04/1.26 = 1.26d/1.26

-4 = d

d = -4

10.

-2/3 = 3/4t

t is being multiplied by 3/4.

Divide both sides by 3/4 which is the same as multiplying both sides by 4/3.

-2/3 * 4/3 = 3/4t * 4/3

-8/9 = t

t = -8/9

11.

w/2.5 = 4.2

w is being divided by 2.5.

Multiply both sides by 2.5.

w/2.5 * 2.5 = 4.2 * 2.5

w = 10.5

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.