To solve the system of equations x - 3y = 32 and x + y = -2,
we can use the method of substitution or elimination.
Method 1: Substitution
Step 1: Solve one equation for one variable in terms of the other variable.
From the second equation, we have x = -2 - y.
Step 2: Substitute the expression for x into the other equation.
In the first equation, replace x with -2 - y: (-2 - y) - 3y = 32.
Step 3: Simplify and solve for y.
-2 - y - 3y = 32
-2 - 4y = 32
-4y = 34
y = -34/4
y = -17/2
Step 4: Substitute the value of y back into one of the original equations to solve for x.
Using the second equation: x + (-17/2) = -2
x - 17/2 = -2
x = -2 + 17/2
x = -4/2 + 17/2
x = 13/2
So the solution to the system of equations is x = 13/2 and y = -17/2.
Method 2: Elimination
Step 1: Multiply the second equation by 3 to make the coefficients of y in both equations equal.
Original equations: x - 3y = 32 and x + y = -2.
After multiplying the second equation by 3: 3x + 3y = -6.
Step 2: Add the two equations together to eliminate the y terms.
(x - 3y) + (3x + 3y) = 32 + (-6)
4x = 26
x = 26/4
x = 13/2
Step 3: Substitute the value of x into one of the original equations and solve for y.
Using the second equation: (13/2) + y = -2
y = -2 - 13/2
y = -4/2 - 13/2
y = -17/2
So the solution to the system of equations is x = 13/2 and y = -17/2.
大皖新闻讯 12月2日,由合肥市体育局、合肥市蜀山区人民政府、合肥市体育总会共同主办的“舞动蜀山”2023中国·合肥体育舞蹈公开赛暨合肥市第十六届青少年体育舞蹈锦标赛在合肥体育中心举办,60余支代表队、近800名“舞林高手”参加了比赛。, 金融,让生活更美好。
今年1月,华福证券公告称,因年龄原因,黄金琳申请辞去公司第六届董事会董事长、董事、董事会发展战略与ESG委员会主任委员、董事会薪酬与提名委员会委员职务。,据了解,这类病变是冠状动脉介入治疗的难点和挑战。
血尿应该如何治疗?血尿较重者,可以先给予止血药物。,中心涵盖了呈贡区的图书馆、博物馆、文化馆、体育馆和职工活动中心、老年活动中心,以及演艺中心等综合性功能。