• Решите пожалуйста дам 45...

Ответы 2

  • спасибо большое!!
  • 365.х/3+х/12=15/4(4х+х)/12=15/45х=15/4 ×125х=45х=45÷5=9$$$$$$$$366.х/4 + х/8=3/2(2х+х)/8=3/23х/8=3/23х=3/2×83х=12х=12÷3=4$$$$$$$$$$367.х/5 - х/2=-3(2х-5х)/10=-3-3х=-3×10-3х=-30х=-30÷(-3)х=10$$$$$$$$$$$368.х/4 - х/3=-1(3х-4х)/12=-1-х=-12х=12$$$$$$$$$$369.(х+9)/3 -х/5=1(5(х+9)-3х)/15=15х+45-3х=152х=15-452х=-30х=-30÷2=-15$$$$$$$$$$$370.(х-6)/4 -х/3=1(3(х-6)-4х)/12=13х-18-4х=12-х=12+18х=-30$$$$$$$$$$371.(х-4)/3+х/2=5(2(х-4)+3х)/6=52х-8+3х=5×65х=30+85х=38х=38÷5=7.6$$$$////х/3 + (х-1)/2=4(2х+3(х-1))/6=42х+3х-3=245х=24+35х=27х=27÷5=4.8$$$$$$$(х-1)/2=(4+2х)/33(х-1)=2(4+2х)3х-3=8+4х3х-4х=8+3-х=11х=-11$$$$$$$$$$(3х-2)/5=(2+х)/33(3х-2)=5×(2+х)9х-6=10+5х9х-5х=10+64х=16х=16÷4=4$$$$$$$$$$(х-4)/4 - 2=х/2(х-4-4)/4=х/2х/4=х/2х/2=хх=2хх=0$$$$$$$$$(х+7)/6 +2=х/3(х+7+6)/6=х/3(х+13)/2=хх+13=2х13=2х-хх=13$$$$$$$$$(х+9)/3 -(х-1)/5=2(5(х+9)-3(х-1))/15=25х+45-3х+3=15×22х+48=302х=30-482х=-18х=-18÷2=-9$$$$$$$$$$(х-4)/2 -(х-1)/5=3(5(х-4)-2(х-1))/10=35х-20-2х+2=3×103х-18=303х=30+183х=48х=48÷3=16$$$$$$$$/$$(х+1)/2 -5х/12=3/4(6(х+1)-5х)/12=3/46х+6-5х=3/4 ×12х+6=9х=9-6=3$$$$$$$$$$$(2х+1)/2 -3/4=7х/8(2х+1)/2- 7х/8=3/4(4×(2х+1)-7х)/8=3/48х+4-7х=3/4 ×8х+4=6х=6-4=2$$$$$$$$$$$1/3 (4х+2)=2х-14х+2=3(2х-1)4х+2=6х-32+3=6х-4х2х=5х=5÷2=2.5$$$$$$$$$$2х-12=1/4 (3х+2)4(2х-12)=(3х+2)7х-48-3х=24х=2+484х=50х=50÷4=12.5$$$$$$$$$$$1/2 (5х+2)=7/2(х-6)5х+2=7(х-6)5х+2=7х-422+42=7х-5х2х=44х=44÷2=22$$$$$$$4/3 (х-8)=1/3 (6х-4)4(х-8)=2(3х-2)2(х-8)=3х-22х-16=3х-22х-3х=-2+16-х=14х=-14$$$$$$$$$$$
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