Question

Can someone explain this step by step please

Answer 1

x = - 2

y = 6

Explanation:

The best way to do this is to put - 3x in for y in the second equation.

4x - 2(-3x) = - 20 Watch the signs. You have 2 minus signs.

4x - - 6x = -20 Change - - 6x to 6x

4x + 6x = - 20 Add

10x = - 20 Divide by 10

x = -20/10

x = - 2

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Find y

y = - 3x

y = -3 * -2

y = 6