Solve Using a Matrix by Elimination x-9=y , x+y=6 x−9=yx-9=y,x+y=6x+y=6 Move variables to the left and constant terms to the right. 点击获取更多步骤... 从等式两边同时减去y。 x-9-y=0 x+y=6 在等式两边都加上9。
Use the result matrix to declare the final solution to the system of equations. x=4x=4 y=−27y=-27 z=−67z=-67The solution is the set of ordered pairs that make the system true. (4,−27,−67)(4,-27,-67)x−z+3y=4,z=3y,y−x=5zx-z+3y=4,z=3y,y-x=5z ...
Use theto solve forx. x=DxD Substitute-25forDand-48forDxin the. x=-48-25 x=4825 x=4825x=4825 Find the value ofyybyCramer's Rule, which states thaty=DyDy=DyD. Tap for more steps... Replace column2of thethat corresponds to they-of the system with[45-3]. ...
a+3b=−2a+3b=-2 −2a−2b=1-2a-2b=1 Solve thesystem of equations. Tap for more steps... Subtract3bfrom both sides of the. a=-2-3b -2a-2b=1 Replace all occurrences ofawith-2-3bin each. Replace all occurrences ofain-2a-2b=1with-2-3b. ...
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8x−8y=248x-8y=24,7x−7y=217x-7y=21 Find theAX=BAX=Bfrom thesystem of equations. [8−87−7]⋅[xy]=[2421][8-87-7]⋅[xy]=[2421] Find theinverseof thecoefficientmatrix. Tap for more steps... Theof a2×2can be found using the1|A|[d-b-ca]where|A|is the determin...
Solve Using a Matrix with Cramer's Rule x+y=9 , x-y=5 Algebra Examples x+y=9x+y=9,x−y=5x-y=5 Represent thesystem of equationsinmatrixformat. [111−1][xy]=[95][111-1][xy]=[95] Find the determinant of thecoefficientmatrix[111−1][111-1]....
Use the formula to solve for . 解题步骤 4.4 Substitute for and for in the formula. 解题步骤 4.5 用 除以。 解题步骤 5 Find the value of by Cramer's Rule, which states that . 点击获取更多步骤... 解题步骤 5.1 Replace column of the coefficient matrix that corresponds to the -coefficients ...
Find theinverseof thecoefficientmatrix. Tap for more steps... Theof a2×2can be found using the1ad-bc[d-b-ca]wheread-bcis the determinant. The determinant of a2×2can be found using the|abcd|=ad-cb. 2⋅-1-1⋅-1 2by-1. ...
Multiplying any matrix by an identity matrix is the matrix itself. Tap for more steps... [−17][-17]Simplify the left and right side. [xy]=[−17][xy]=[-17]Find the solution. x=−1x=-1 y=7y=7x+2=1,y−2=5x+2=1,y-2=5 ...