What would you multipy and to which equation to start solving by using the elimination method? Then would you add or subtract th
em?
7x + 4y = -4
5x + 8y = 28
1 answer:
Answer:
multiply the first equation by -2, then add them
Step-by-step explanation:
7x+4y=-4 *-2 7x+4y=-4 *-2 = -14x-8y=8
5x+8y=28
-14x-8y=8 x=-4, y=6
-9x=36
x=-4
7(-4)+4y=-4
-28+4y=-4
4y=24
y=6
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