tolong dijwb y ,, Dan pakai caranya

a.
[tex]nilai \: a = \\ 7a + (2a + 27) = 180 \\ 9a + 27 = 180 \\ 9a = 180 - 27 \\ 9a = 153 \\ a = 153 \div 9 = 17[/tex]
[tex]nilai \: b = \\ 47 + 93 + 90 + 5b = 360 \\ 5b + 230 = 360 \\ 5b = 360 - 230 \\ 5b = 130 \\ b = 130 \div 5 = 26[/tex]
b.
ABD = 7a
= 7×17 = 119
CBD = 2a + 27
= 2×17 +27
= 34+27 = 61
PQS = 5b
= 5 × 26 = 130
RQP = 90+47 =137

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