Explanation:
first of all, we need to find S:
since Y = W, we can write down the following equation:
2s+30=s+79
where s = 49;
then we need to find Y or W (they are the same), I'll find W: 49+79=128
X=Z=180-W=180-128=52
I hope I helped you (;
3.5m questions
4.4m answers