How to do this math question please help?

2x - 7y = 2 --- (1)
4x + 5y = 42 --- (2)

From (1), we will get:
2x = 7y + 2
x = (7/2)y + 1 --- (3)

Substituting (3) into (2), we will get:
4[(7/2)y + 1] + 5y = 42
14y + 4 + 5y = 42
19y = 42 - 4
19y = 38
y = 38 / 19
y = 2

Substituting y = 2 into (3), we will get:
x = (7/2)(2) + 1
x = 7 + 1
x = 8

Hence, the intersection is at (8, 2).

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