[tex]\displaystyle 1)(x+340)-152=214\\x+340-152=214\\x+188=214\\x=214-188\\x=26\\\\2)500+(x+140)=2056\\500+x+140=2056\\640+x=2056\\x=2056-640\\x=1416\\\\3)800:y-300=500,y\neq 0\\\\\frac{800}{y}-300=500\\ \\\frac{800}{y}=500+300\\ \\\frac{800}{y}=800\\ \\800=800y\\1=y\\y=1\\\\4)(a+200):400=2\\\\\frac{a+200}{400}=2\\ \\a+200=800\\a=800-200\\a=600[/tex]
Ответ:
(Х+340)-152=214
x+340=214+152
x+340=366
x=366-340
x=21..
500+(х+140)=2056
x+140=2056-500
x+140=1556
x=1556-140
x=1416.
800:у-300=500
800:y=500+300
800:y=800
y=800:800
y=1.
(а+200):400=2
a+200=2×400
a+200=800
a=800-200
a=600.
Пошаговое объяснение:
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[tex]\displaystyle 1)(x+340)-152=214\\x+340-152=214\\x+188=214\\x=214-188\\x=26\\\\2)500+(x+140)=2056\\500+x+140=2056\\640+x=2056\\x=2056-640\\x=1416\\\\3)800:y-300=500,y\neq 0\\\\\frac{800}{y}-300=500\\ \\\frac{800}{y}=500+300\\ \\\frac{800}{y}=800\\ \\800=800y\\1=y\\y=1\\\\4)(a+200):400=2\\\\\frac{a+200}{400}=2\\ \\a+200=800\\a=800-200\\a=600[/tex]
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Verified answer
Ответ:
(Х+340)-152=214
x+340=214+152
x+340=366
x=366-340
x=21..
500+(х+140)=2056
x+140=2056-500
x+140=1556
x=1556-140
x=1416.
800:у-300=500
800:y=500+300
800:y=800
y=800:800
y=1.
(а+200):400=2
a+200=2×400
a+200=800
a=800-200
a=600.
Пошаговое объяснение: