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.
如何预防艾滋病？ 1、安全性行为。， “让‘小海鲸’再深潜下去检查桥墩，注意查看河床有没有淤泥。
镇党委在后台积极推送，并及时将信息反馈至西郊村挂村领导余国淳，由其进行现场核实、沟通有关单位进行处置。，11月9日，一条线索再次浮现——广东省湛江市有一男子与黄某长相极度相似！专案组民警立即开展比对工作，经细致比对，最终锁定此人正是潜逃26年的犯罪嫌疑人黄某！确定身份后，刑侦大队长彭飞带队立即奔赴广东省湛江市，在当地警方的协助下，于11月11日将黄某抓获归案。
在《爱的修学旅行》中，何猷君和奚梦瑶的甜蜜互动不仅仅体现在节目中。， 白敬亭的优雅举止和亲和力，让他收获了无数粉丝的青睐。
首页
