Help please will mark brainless 25 points due today

here's the solution,

we know that, sum of measures of each interior angle of a triangle = 180°

Figure 1.

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Figure 2.

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Figure 3.

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168

step-by-step explanation:

i am pretty sure that the answer is 168

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.