Question

Solve the system using substitution.
6x+8y=30 y=1/2x

Answer 1

• (3, 1.5)

Explanation:

Given the system:

• 6x + 8y = 30
• y=1/2x

Substitute y and solve for x:

• 6x + 8y = 30
• 6x + 8(1/2x) = 30
• 6x + 4x = 30
• 10x = 30
• x = 3

Find y:

• y = 1/2x
• y = 1/2(3)
• y = 1.5

Solution is (3, 1.5)