# math

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i only need help on these two:
*2/3y=10+4x
5x=1/3y-8

*5x=4y-30
2x+3y=-12

DIRECTIONS:use linear combinations to solve the system of linear equations.. thanks :)

• math -

I suggest you study the two answers given before and proceed with solving the remainder. This way, you will have no problems to face your exams.

http://www.jiskha.com/display.cgi?id=1295847952

• math -

Have you tried substitution?

In the second problem,
x = -6 - (3/2)y
-30 -(15/2)y = 4y -30
y = 0
5x = -30
x = -6

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