If 4x + 3y = 18 and 2x – y = 4, find the value of x.

A2

B3

C4

D5

Explanation

From second equation: y = 2x – 4. Substitute into first: 4x + 3(2x – 4) = 18 => 4x + 6x – 12 = 18 => 10x = 30 => x = 3.

Exam Relevance

Topic: Algebra
Subtopic: Simultaneous Equations

Submitted by: mcqstutor Team More Mathematics MCQs →