Mathematics for IGCSE & O level - Algebraic Manipulation (Section 6 - No. 27)

If x + y = 7 and x - y = 3, what is the value of x?

2

3

5

10

הֶסבֵּר

Adding both equations: 2x = 10, so x = 5

הערות (0)

פִּרסוֹמֶת