x + 30 = 64
Therefore, x = 64 - 30
x = 34
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x = 64 64 + 64 = 128
x = 116. x + 64 = 180 is the same as x = 180 - 64, which equals 116.
4x² - 30 = 34 4x² = 34 + 30 4x² = 64 4x = √64 4x = 8 x = 8 ÷ 4 x = 2
a=64 b=8 (x+16x+64)=(x+8)^2
find x when, 2x=128 2x=128 /2 /2 x=128 /2 x=64 then check your answer by doing the following if x=64, then what is 2x? 2(64)=? or 2 * 64=? or 2 x 64=? 2 times 64 equals 128!