20x+5y=120
10x+7.5y=80 multiply this one by 2
___________
20x+5y=120
20x+15y=160 subtract
___________
-10y=-40 divide both sides by -10
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y=4
20x+5(4)=120 plug 4 in for y in the first equation
20x+20=120 multiply
20x=100 subtract
x=5 divide to find x
So take 112 and multiply it by 7, 7x112 = 784.
Answer:
X=1
Step-by-step explanation:
5(2x - 8) + 15 = -15
10x - 45 + 15 = -15
10x - 25 = -15
10x = 10
X= 1
Answer:
I don't quite know
Step-by-step explanation:
but thanks for asking
8 i think if not don’t know what to tell ya friend✌
