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Enter the value of x that make the parallelogram a rhombus

Enter the value of x that make the parallelogram a rhombus-example-1
User Igor S Om
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2 Answers

7 votes
x is equal to 4 I think I’m not sure
User Rho Phi
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2 votes
a rhombus has 4 equal sides so 21 - x should equal 8x + 3

put them into a simultaneous equation and solve for x

21 - x = 8x + 3

21 - 3 = 8x + x

18 = 9x

x = 18 ÷ 9
x = 2
User XiaoChuan Yu
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