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If you mean 49+6 = 4x-7 then the value of x is 15.5
4x + 3, where x = 7 4(7) + 3 = 28 + 3 = 31
4.00
x = 37 4x - 7 = 141 4x - 7 + 7 = 141 + 7 4x = 148 x = 37
sqrt(4x+7) -4 = sqrt(4x-1) squared : (sqrt(4x+7) -4)2 = 4x-1 (4x+7) - 2x4xsqrt(4x+7) +16 = 4x-1 -8xsqrt(4x+7) = -24 sqrt(4x+7) = -24/-8 = 3 squared : 4x+7 = 32 = 9 4x = 9-7 = 2 then x=1/2