Solve the equation; 3x - 2y = 7, x + 2y = -3

Assessment: WAEC SSCE - General Mathematics - 2011 (Objective) Subject: General Mathematics

Question 1 Report

Solve the equation; 3x - 2y = 7, x + 2y = -3
Answer Details
To solve this system of equations, we can use the method of elimination. We will add the two equations together, which will eliminate the y variable: (3x - 2y) + (x + 2y) = 7 + (-3) Simplifying, we get: 4x = 4 Dividing both sides by 4, we get: x = 1 Substituting x = 1 into one of the equations, we get: 1 + 2y = -3 Solving for y, we get: y = -2 Therefore, the solution to the system of equations is x = 1, y = -2. So, the correct option is (a) x = 1, y = -2.
Read lesson note on Solution Of Linear Equations (WAEC)
View Answer

Related Questions

1

One of the factors of (mn - nq - n2 + mq) is (m - n). The other factor is?
2

A regular polygon of n sides has each exterior angle to 45o. Find the value of n
3

If N112.00 exchanges for D14.95, calculate the value of D1.00 in naira
4

Esther was facing S 20° W. She turned 90° in the clock wise direction. What direction is she facing?
5

Solve for x in the equation; \(\frac{3}{5}\)(2x - 1) = \(\frac{1}{4}\)(5x - 3)
6

Given that cos xo = \(\frac{1}{r}\), express tan x in terms of r
7

A cylindrical container has a base radius of 14cm and height 18cm. How many litres of liquid can it hold? correct to the nearest litre [Take \(\pi = \frac{22...
8

If a number is chosen at random from the set {x: 4 \(\leq x \leq 15\)}. Find the probability that it is a multiple of 3 or a multiple of 4

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning