首页
登录
职称英语
If 3x+4y=17 and 5x+2y=23, what is the value of x-y?______[img]2014m5x/ct_egreqm
If 3x+4y=17 and 5x+2y=23, what is the value of x-y?______[img]2014m5x/ct_egreqm
游客
2025-02-24
24
管理
问题
If 3x+4y=17 and 5x+2y=23, what is the value of x-y?______
选项
答案
3
解析
The correct answer is 3. In order to solve this system of equations, subtract the first equation from the second. The result is 2x-2y=6. Factor out 2 to get 2(x-y)= 6. Divide both sides by 2; x-y=3.
转载请注明原文地址:https://tihaiku.com/zcyy/3970636.html
相关试题推荐
[img]2014m5x/ct_egreqm_egreqtbz1_0015_20135[/img][br]In1970,ifthecosttop
[img]2014m5x/ct_egreqm_egreqtbz1_0015_20135[/img][br]In1990,thetotalrevenu
[img]2014m5x/ct_egreqm_egreqjs_0128_20135[/img]A、5B、12C、24D、33E、41CThecorr
[img]2014m5x/ct_egreqm_egreqjs_0124_20135[/img]A、0.017328B、0.17328C、1.7328D、1
[img]2014m5x/ct_egreqm_egreqjs_0113_20135[/img]Inthefigureabove,whatisth
[img]2014m5x/ct_egreqm_egreqtbz1_0083_20135[/img][br]In1995,approximatelyho
[img]2014m5x/ct_egreqm_egreqtbz1_0065_20135[/img][br]Basedonthegraphshown,
PROFILEOFCONGRESSINYEARX(totalmembership:535)[img]2014m5x/ct_egreqm_egr
PROFILEOFCONGRESSINYEARX(totalmembership:535)[img]2014m5x/ct_egreqm_egr
Whichofthefollowingisequalto[img]2014m5x/ct_egreqm_egreqjs_0043_20135[/img
随机试题
NationalGeographic【61】fillanumberofroles,saysKarenKasmauski."Weare
OneofthemostbasicmoralvaluesforAmericansis【C1】_______.Thewell-kno
[originaltext]Goodmorning,everyone.Ourtopicfortoday’stalkisabouts
[originaltext]Iwanttothankallofthestudentswhoareheretoday.AndI
有抗震要求的钢筋混凝土框支梁的混凝土强度等级不应低于( )。A.C25 B.
人乳喂养每天需要蛋白质A.2g/(kg·d) B.3.5g/(kg·d) C
患者,男,25岁。头晕1个月,高热,鼻衄1周来诊,心烦口渴,皮肤见瘀点及瘀斑,舌
关于胃液中黏液的叙述中,哪项是错误的A.胃液中出现大量黏液,提示胃有炎症 B.
某住宅小区,有18栋20层的住宅,建筑高度为57m,20层楼板标高为54.2m,
男性矿工,井下作业时发生塌方砸伤背部,当即倒于地上,下肢无力不能行走,立即来诊。
最新回复
(
0
)