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標題:
math!!10
發問:
1.2(a+1)+3a=17 2.13(4-y)+7y=-14 要有步驟!plz&thz
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最佳解答:
2(a+1)+3a=17 2a+2+3a=17 5a=15 a=3 13(4-y)+7y=-14 52-13y+7y=-14 52+14=13y-7y 66=6y y=11
其他解答:
1.2(a+1)+3a=17 2(a+1)+3a=17 2a+2+3a=17 5a+2=17 5a=15 a=3 2.13(4-y)+7y=-14 13(4-y)+7y=-14 52-13y+7y=-14 52-6y=-14 -6y=-66 6y=66 y=11|||||1) 2(a+1)+3a=17 2a+2+3a=17 5a+2=17 5a=15 a=3..................final answer 2) 13(4-y)+7y=-14 52-13y+7y=-14 52-6y=-14 52+14=6y 66=6y y=11................final answer|||||1.2(a+1)+3a=17 2a+2+3a = 17 2a+3a = 17 - 2 5a = 15 a = 3 2.13(4-y)+7y=-14 52 - 13y + 7y = -14 52 + 14 = 13y - 7y 6y = 66 y = 11
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