Penjelasan dengan langkah-langkah:
a. 4x-10=10x+5
-10x+4x=5+10
-6x=15
x=15:-6
x=-2,5
corner PQS and RQS
PQS=90-10x+5
=90+5-10x
=95-10x
•10x=95
x=95:10
x=9,5
RQS=90-4x+10
=90+10-4x
•100=4x
100:4=x
25=x
b. ∆ABC=90⁰-45⁰
x=45⁰
Hope it helps
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Penjelasan dengan langkah-langkah:
a. 4x-10=10x+5
-10x+4x=5+10
-6x=15
x=15:-6
x=-2,5
corner PQS and RQS
PQS=90-10x+5
=90+5-10x
=95-10x
•10x=95
x=95:10
x=9,5
RQS=90-4x+10
=90+10-4x
•100=4x
100:4=x
25=x
b. ∆ABC=90⁰-45⁰
x=45⁰
Hope it helps