Solve the system of equations using the linear combination method. 4- 3y=12
178-3y=3
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X
Y

x = -3; y = -8

Step-by-step explanation:

Multiply second equation by -1 and add to first equation.  The y term zeros out, leaving you with -3x = 9, so x = -3.

Then go back and sub -3 in for x in either equation, and solve for y.  If you use the first equation, you get 4(-3) -3y = 12

-12 -3y = 12

-3y = 24

y = -8

7.3

step-by-step explanation:

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.