4x=多少怎样简算
4×(0.5x-2)=0.4x
2x-8=0.4x
2x-0.4x=8
1.6x=8
x=8÷1.6
x=5
绛旓細鎶125鎷嗘垚25锛5锛岀劧鍚庡彉鎴4锛9锛25锛5锛4锛25锛9锛5锛4500.
绛旓細4X5x24 =4x100 =400 浠ヤ笂灏辨槸绠渚挎柟娉曘
绛旓細4X(25鍗80)=100+320 =420.
绛旓細锛3锛夌瓑寮忕殑涓よ竟鍚屾椂闄や互12锛屽啀鍚屾椂鍑忓幓6.5锛屽嵆鍙緱瑙o紱锛4锛夊厛鍒╃敤涔樻硶鍒嗛厤寰嬪皢鍘熷紡鍙樺舰涓猴紙3.2+6.8锛壝1.9锛屽啀鎹皬鏁板洓鍒欐贩鍚堣繍绠楃殑椤哄簭锛屽嵆鍙緱瑙o紱锛5锛変緷鎹皬鏁板洓鍒欐贩鍚堣繍绠楃殑椤哄簭锛屽厛杩涜鎷彿涓殑鍑忔硶杩愮畻锛屽啀鏍规嵁闄ゆ硶鎬ц川绠绠鍗冲彲锛庯紙1锛3.44+4x=16.2锛3.44+4x-3.44=16.2-3....
绛旓細4x9.6x2.5 =4x2.5x9.6 =10x9.6 =96
绛旓細鍘熷紡=4x2222x3x2222梅2222梅2222 =4x2222梅2222x3x2222梅2222 =4x3 =12
绛旓細涓夊勾瀛︾敓锛屽簲璇ュ厛棰勪範涔樻硶鍒嗛厤鐜囩殑璁$畻鏂规硶锛岀劧鍚庡啀鍘诲仛杩欓亾棰橈紝浣犲氨鎺屾彙鏂规硶锛屽啀鍘诲仛棰樺氨绠鍗曚簡銆4x(372+628)=4鈪1000 =4000
绛旓細锛4+0.4锛墄250 =4x250+0.4x250 =1000+100=1100
绛旓細鍒楁柟绋嬪紡璁$畻15.9+4x=32.7 瑙i鎬濊矾:璁$畻涓鍏冧竴娆℃柟绋,闇瑕佸皢鏈煡鏁扮Щ鍔ㄥ埌宸﹁竟甯告暟绉诲姩鍒板彸杈,瀹屾垚绉诲姩鍚庢渶缁堢畻鍑烘湭鐭ユ暟鐨勭粨鏋溿傝В棰樿繃绋:15.9+4x=32.7 x=锛32.7-15.9锛壝4 x=4.2
绛旓細闂ㄧエ闂锛3.5鍏/浜*4浜+1.5鍏/浜*1浜=15.5鍏 璺濈闂锛30涓囧崈绫/绉*2.56绉/2=38.4涓囧崈绫