Answer:it’s B (120 succes and 80 failures for khan academy)
Step-by-step explanation: trust me
Answer:
11
Step-by-step explanation:
12x 11=132 or 12x12=144-12=132.
How is it an error? Need more explatinion or an example
| 8 | | 1 | | 6 |
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| 3 | | 5 | | 7 |
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| 4 | | 9 | | 2 |
X = 2y - 12....so sub 2y - 12 in for x in the other equation
3x + 4y = 14
3(2y - 12) + 4y = 14
6y - 36 + 4y = 14
6y + 4y = 14 + 36
10y = 50
y = 50/10
y = 5
x = 2y - 12
x = 2(5) - 12
x = 10 - 12
x = -2
solution is (-2,5) <==