Find Missing Variables

Solve for x

• 5

• 90

• 25

• 10

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25

• Complementary; x=5

• Supplementary; x=25

• Supplementary; x=5

Find the value of x.

• 18°

• 28°

• 38°

• 118°

Solve for x

• 6

• 140

• 20

• 90

What is the variable in the equation 4y = 24?

• y = 8

• y = 6

• y = 4

• y = 12

Find the value of "y" satisfying both the equations 2x - 6 = y and x - y = 2

( 1 mark )

Evaluate responses using AI:

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Find the value of k, if x = - 4, y = - 5 is a solution of the equation: 3x - 4y = K

• K = 6

• K = - 6

• K = 8

• K = - 4

Answer explanation

3x - 4y = K Substituting x = - 4 and y = - 5 in the equation, we get, 3(- 4) - 4(- 5) = K - 12 + 20 = K K = 8 Therefore, the value of K = 8

What value of 𝑥 would make 𝑦 = 1 in the equation 3𝑥 + 𝑦 = 4?

• -1

• 0

• 1

• 2

Find the missing angle.  Find x.

• 15^o

• 50^o

• 130^o

• 165^o

Find the value of x.

• 17

• 28

• 68

• 39.5